Camera Bodies:

• Nikon D200

Lenses:

• Nikkor 12-24mm f/4 ED AF-S DX*
• Nikkor 28-70mm f/2.8 ED AF-S*
• Nikkor 70-200mm f/2.8 ED AF-S VR*
• Nikkor 200mm f/4 ED Micro*
• Sigma 135-400mm f/4.5-f/5.6 APO 

Tripod:

• Bogen 3021
• Kirk BH-3 Ball Head
• Manfrotto Ball Head Leveling tool - Great for taking panoramas that will be assembled digitally.

Film & Accessories:

• Sandisk Extreme III 2GB CompactFlash cards
• Kirk "L" Bracket
• Custom made "L" Bracket ¹
• Kirk Long Rail Plate
• Cable release
• Lumiquest Flash Softbox
• Litedisc Diffusers & Reflectors made by Photoflex
• Neutral density, polarizer, and enhancing filters made by Singh-Ray ²
• Two Cokin P Series filter holders- one cut down to hold only one filter
• Cokin adapter rings to fit all lenses
• Nikon 5T & 6T Close-up Attachment Lenses to fit the 200mm Micro
• Sigma 1.4X EX APO Teleconverter
• Flash extender occasionally used to shoot wildlife and captive animals
• Lowe Pro Pro Trekker AW II ³
• Lowe Pro Street & Field Belt & Harness system ³

Photo Editing and Printing:

• Nikon Super Coolscan 5000 ED for scanning slides
• Nikon Capture 4 to edit RAW files (NEF).
• Adobe Photoshop CS for retouching and printing.
• Adobe GoLive CS for web design.
• Adobe InDesign CS for Layout
• Epson Stylus Photo 2000P Archival Printer

^1. My Custom (should read home made) "L" Bracket was made from a flash bracket that you can buy at any camera store. With a little modification it worked like a dream! Now those vertical shots aren't such a headache to shoot. No more putting the tripod head off to one side and losing any more height from my already short tripod.  
I now use the Kirk model.

^2. When I first started to take landscape photographs I bought every Cokin filter I could find. Thinking that it would make my photographs better I attached various coloured filters to my lenses. Sometimes putting two together to improve the lighting or to add a bit of mood to my photographs. It didn't work. They were nice for a little while, but I quickly started to dislike the artificial colours that the filters would add. I can only take so much mauve and pink in the sky! I didn't like the fact that the clouds would become the same colour as the rest of the sky. Or that the trees would turn blue etc. I was also never very happy with the Grey Graduated filters from cokin. They actually add colour, and are not neutral in the grey portion of the filter. Then after reading what filters other photographers were using, specifically professional nature photographers, like the late Galen Rowell I learned about the filters made by Singh-Ray. This line of graduated neutral density filters was designed by Galen Rowell with Bob Singh over the course of 3 years. These filters are totally neutral, no colour is added to the photograph. I have tested the filters and they are correct in regards to how many stops of light they hold back. One of these filters is almost always attached to my lens when shooting landscapes, especially when there are interesting cloud formations.

^3. In the past I worked mainly from the Lowe Pro vest harness and the Nature Trekker backpack. The harness worked very well, but I found that it would strain my back when bending over to do macro photography. The Nature Trekker; although a great camera pack, just didn't have enough room to comfortably fit all of my gear. As I upgraded some of my equipment I found that I was "stuffing " the Nature Trekker like it was a suitcase! It looked as if it would burst at the seems. I now work from the Pro Trekker pack, using the vest harness occasionally for short trips where only one or two lenses will be needed. The Pro Trekker AW II is a great camera pack. It has ample amounts of room for every piece of equipment you could possibly want to take with you. It is also extremely comfortable to hike with for extended periods of time due to the excellent design of the harness system. Because of the larger size of the Pro Trekker, I can now use the tripod holder on the back of the pack without the tripod hitting me in the head. If you plan to carry a substantial load of camera equipment into the field like I do, then I would strongly urge you to look into one of their packs.

With the exception of a few items, the majority of my equipment was bought second hand. Either purchased from camera stores, or through ebay. There are some great deals out there if you are willing to wait for the right one to show up. I would rather wait for a good deal, and then spend the extra money on travel expenses.
The extra money I have spent on the Nikkor lenses has proved invaluable. Contrast, colour and image sharpness is exceptionally better when compared to the Sigma lenses I have used in the past. The Sigma lenses have good optical quality but the main problem that I experienced was due to bad lens construction. On two occasions the barrel separated from the aperture ring on the 17-35mm f/2.8-f/4 lens. I had always wanted to upgrade to the Nikkor 17-35mm AF-S lens, and after repairing the Sigma for the second time I decided it was time to let it go. The same problem has occurred with my Sigma 28-70mm f/2.8 EX Aspherical lens.
Optical quality may be great in some of the off brand manufacturers, but it is the construction of the lens that you have to worry about. If you shoot photos in any type of outdoor location, where weather will be a factor I would suggest buying the Nikkor lenses. If you use Canon, Minolta or Pentax, then save up and buy their lenses. You will spare yourself a lot of time, money (on the repair costs), and frustration by doing so. The quality of your photographs will be greatly improved as well by the better quality of the these lenses.
Sometimes it just pays to spend the extra money.