My path is a bit like Goosepond's--I started in fotografy in 2000, with EOS stuff that fall with the D30, had pairs of those, pairs of D60s, and then one of the 1Dses that arrived in Phoenix that 1st day. Eventually settled on a bunch of primes including a Zeiss/Contax Distagon T* 28/F2. My passion for landscape fotografy died a couple years ago and all that wonderful stuff sold. Bought a Rebel XTi/BG/17-85 for casual shooting.
Now I'm back to landscape fotografy and a couple weeks ago bought a 5D/BG/24-105L-IS, have a 17-40 on the way, and am looking again at the Zeiss/Contax Distagons, this time an 18. Oh well. Sure is fun.

I am sure NOT tempted by the new 5D2, altho it'd be excellent for my needs; it's just too much money right now. Maybe for $1500 a couple years from now?
