I use a Canon D30 (digital) with a 75-300MM F4-5.6 lens, was pretty cheap at £420 incl. lens, only problem with it is the lens produces very soft images past 200MM and above F5.6 but its a great camera for its age, worth looking into if you want a decent camera with alot of changeable settings. But with DSLR's its more about optical quality (the lens that you use) rather than the megapixels it has, unlike point and shoot cameras.
If your going to go with a normal SLR make sure you get some good quality film for it, many recommened Kodachrome K64 and Fuji Velvia 100, also a good film\slide scanner is required...
But one thing I've learnt most about photography and cameras from photography forums I post at and visit is "
It's not the camera that matters, it's what a photographer can do with it that counts"
Hope this helped
Joe.