a friend is looking to seel his 10 d to upgrade. i currenly shoot with a 35mm rebel 2000 and want to go digital but have been waiting until i had the money for a decent dslr. is i'm an amateur that shoots on vacation traveling and outdoors/ nature mostly. i have a 70-300 mm and a a 28-80 mm lens. is the 10 d worth me buying or is it too old? if so, what price is fair? i don't want to jump on a "good " deal just to be upset about it in a few years because technology has gone so far. thanks dominik