OK, I don't really know much about the compatibility of older 35mm lenses with new DSLR's so someone help me out a little here. I get that the old lenses are designed around projecting the image on 35mm film. And that the DSLR has an image sensor that may or not be the same size. But beyond that is where I get lost. So this is what I have, all Cannon based:
Sigma EX 17-35mm F2.8-4 aspherical
Cannon EF 100-300mm 4.5-5.6 ultrasonic
Cannon crap lens that came with my EOS Rebel G, 35-80mm
Assorted filters for all three lenses, all different sizes of course
What would they do on a basic DSLR body? Looks like I could pick up a Rebel T2i body for $550ish More than I want to spend but if my old stuff would work with it...