My first digital camera was an Olympus C-2500L. I was very content with it until one day it got stolen and I had to start looking for a replacement. I bought a Canon G-1 and only then realized how noisy the Oly was. Followed the inevitable - I sold all my Nikon gear and bought a Canon D-30 (I defected the Nikon camp because of Canon lenses). A 10-day trip on Brazil dirt roads convinced me that changing lenses in the field is not always a good idea. I am using D-60 and 1D cameras and am trying to change lenses only in a "dust-free environment" (yes, I am nuts).

IMHO, 1D is fantastic for wildlife. The autofocus performance combined with virtually instantaneous shutter response plus a lower sensor noise at higher ISO is a hard-to-beat combination.

Equally impressive is the D-60, given the price. For static subjects (where autofocus performance and shutter lag are not an issue) it works very well. If only it had a 1.3x size sensor...

Until September 2002 used a D30. D30, in spite of its "yesterday's technology" still shines - 99 percent of the time I am limited by my photo skills, not by camera specs. Of course, the autofocus and shutter lag disclaimers hold when applicable.

16-35/2.8L, 28-70/2.8L, 70-200/2.8L IS, 100-400L IS, 500/4L IS, 180/3.5 macro, 28-135 IS - all Canon.
Canon 550EX, Quantum Q-flash. Until recently had a Hensel Porty. Again, all from Ebay. I made a very lightweght Fresnel head for the Porty which allows me to use it as a high power fill-in flash with a >300mm lens. A big strobe can be extremely handy in wildlife shots (I mostly use it as a fill flash in "available light" conditions). They are not without problems, though. Number one is size and weight (the Porty kit is 20lbs). The long pulse can be a problem for fast-moving subjects (e.g. birds).
Velbon Carmagne tripod, different heads depending on the occasion - Bogen Proball (big and heavy), Velbon Ph-273 (very light), Wimberley head for the 500/4 lens. The Bogen head does not get much use because of its weight. Bogen 680B monopod. Velbon quick release system. IMHO, Velbon makes very high quality, very reasonably priced hardware. Most items bought used on Ebay. Probably will need to get a big tripod sometime before I get a 1Ds. The Velbon tripod is extremely light and rather sturdy (carbon fiber) but its central column is not rigid enough for a 1D / 1Ds with a long lens.
UV and polarizer, all Hoya SMC (super multicoated). These extremely high qualtiy filters are relatively inexpensive.