Hey guys I'm new to this site so....OK so far I have a 8000 elite cmt chassis with the 320w PSU I modified the chassis to fit the 8200 elite cmt Mobo with the i3 2120 with 8gigs of RAM and the amd Radeon HD 7470 and a 128g sandisk x100 SSD as my OS and a 750g HDD as storage I'm planning on buying a 15pin male sata power to 6pin GPU power with that said what GPU can I buy that is better than my Radeon HD