Basically at that price range, you are looking at a second hand 35mm camera.
However to get the close up detail needed I think that you\'ll need either a macro lens or Extension tubes.
I can recommend Nikon equipment, but that may be outside your price range as even second hand they will hold their price. The only thing to do is look at the camera shops in your area and see whats available. Aim for an automatic exposure model and try to budget for a tripod as well.
Good luck.