Собствено сыллка -
http://dcresource.com/reviews/canon/eos_30d-review/index.shtml
Любопытно еще сравнить по шумам с д200
http://dcresource.com/reviews/nikon/d200-review/index.shtml
А еще мне понравилось пару веселых выводов о линзах
One thing that really got nailed home during my time with the 30D is how important lens quality is. I bought the Canon 17 - 85 EF-S lens a few months back, and have been less than thrilled with its sharpness -- and you'll see the results in the photo gallery. Slap on some better glass and you'll get much sharper photos, as the photos taken with my 50 mm lens attest.