1st tip: read through all the posts in the photography forum that cover this very same subject matter and include many suggestions as well as links to independent hardware review sites :-)
As noted above you need to provide a little more information then that for us to be able to give you suggestions. We have no idea whether you want something that you can take quick little shots of your friends and would be happy with the quality from a camera phone, or if you are thinking about starting out as a pro wanting the top of the line equipment. There is a lot of space between there.