I don't really know my cameras, so I can't point you in the right direction there. I used a simple and cheap Kodak Easyshare C813 Zoom and that worked well enough for me. However, some other tips:
A while ago, I made a box (Missing a top and front) out of some old shelving, painted it all white, and mounted a lamp above it. Simple lightbox. Place the piece in there, turn on the light, and it'll help prevent them being dark. Example
. Another option I've seen lots of people do is just use a piece of paper.
Something else to remember is the macro function. Usually a little flower icon. If you can figure out the distance, that function picks up detail really well and helps avoid blurriness. Also make sure the focus is on your object.
I'm loathe to upload pictures when I've seen how harsh the criticism is (of what looks to me like good pieces) because the image captured is badly lit or not from a decent camera.
You definitely don't
have to worry about that here. We're a very constructive group, we won't bash you because your picture is bad, we'll just try and help you make it better.