Pick up a cheap Minolta SLR - they can be found on Ebay for fairly cheap most of the time and will likely come with a lens. I'd recommend grabbing some 400 or 800 ISO/ASA film (Kentmere and Tri-X come to mind) - they'll be fairly forgiving if you don't get the exposure/aperture settings quite in tune. Personally, I'd go with 400, it'll be less grainy, but will still handle most lighting situations well.
I'd recommend grabbing a fully mechanical camera to avoid electronic parts failing.
