probly better in the Laptops board, but I'll suggests the HP g7z-2100, which you can customize on their site.
for $579 you can get it with an A8-4500M + HD 7670M, or with an A10-4600M alone, which will be great for gaming.
for $629 you can have the A10 with HD 7670M.
+10 from that gives you a 7200RPM 500 GB drive.
Should be a great gaming laptop