I actually went through the thought process, and just sold a ton of Contax N1/Zeiss lenses on eBay because of a lack of a viable DSLR body. I switched to a Canon film body and a 10D, and "L" glass. I thought the N1 controls were more intuitive to someone that grew up with manual cameras with f stops and shutter speeds. I am really pixxxx-off at Contax....I had a fortune invested in the very lovely Zeiss lenses, but I let them go at a loss to switch to Canon. I also own a G2, with 21, 28, 45, and 90 lenses, hoods, filters, flash, system case, etc. For the time being, I plan on keeping this system, as it is a nice "travel" system, and the lenses are jewels. However, if I really get into the Canon system, and feel the need for more "stuff" (stuff is good), I may sell.
Regards, and sorrows to Contax owners.
Dave