I use a canon powershot A630 for photographing plants and flowers, it costs me about $250.00. It has Macro setting built in, you can get very close and clear shots of just about anything. I also have the canon powershot S3 IS with an image stabilizer and a 12x zoom. I use a tri-pod to keep the camera from moving, the more still the camera is the better the photo comes out.
This little rascal was at least 200 yards away when I took his picture.
Even through glass their is no reflections, I always set the camera for a 2 second delay to get the best shot.
Close up of a crocus.
Close up of Fittonia
Takes great outdoor shots -Sun Rise scene in Rhinelander, Wisconsin
Another sun rise scene
A Red Rose close up
Pin cushion plant has one of the smallest leaves and berries, yet this photo makes it look larger than actually size.
A close up of Baby Tear plant.
And you can also focus on one flower and blur the others, I focused on the very first flower you see, the ones in the background I slightly blurred.