The 5770 is relatively inexpensive, and is faaaar superior to the 4650. You could also go with a 4850 for about $110, and be way better off than with the 4650.

Tom's is not a great source at this point. Have a look at http://www.techreport.com. They have a very good guide out every month. I generally go off of their guides to some degree.

I am the Doctor, and THIS... is my SPOON!