Modern digital cameras focus well even at close distances.
Blur is usually caused by camera shake. Good light helps with that because it reduces the exposure time, and people's ideas given above are going to help.
Fixing the camera in place will always solve the problem, though, so get a tripod. This kind of thing is all you need.
http://www.parkcameras.com/25010/Joby-GripTight-GorillaPod-Stand.html?referrer=Froogle&gclid=CIzN3duAyLsCFSKWtAodtnAAcw
You want a light touch on the shutter button, and make sure the whole setup isn't going to slip or joggle.