http://www.newegg.com/Product/Product.aspx?Item=N82E16814102909
Radeon 6870
or
http://www.newegg.com/Product/Product.aspx?Item=N82E16814130550
GTX 470
I will be buying a new heatsink
http://www.newegg.com/Product/Product.aspx?Item=N82E16835103065&nm_mc=AFC-C8Junction&cm_mmc=AFC-C8Junction-_-RSSDailyDeals-_-na-_-na&AID=10521304&PID=3463938&SID=
Radeon 6870
or
http://www.newegg.com/Product/Product.aspx?Item=N82E16814130550
GTX 470
1 x ASUS M4A78 Plus AM3/AM2+/AM2 AMD 770 ATX AMD Motherboard
1 x XFX HD-577X-ZNFC Radeon HD 5770 1GB 128-bit DDR5 PCI Express 2.0 x16 HDCP Ready CrossFireX Support Video Card
1 x Antec Basiq BP500U 500W Continuous Power ATX12V Version 2.01 Active PFC Power Supply
1 x AMD Phenom II X4 955 Black Edition Deneb 3.2GHz Socket AM3 125W Quad-Core Processor HDZ955FBGIBOX
1 x G.SKILL 4GB (2 x 2GB) 240-Pin DDR2 SDRAM DDR2 1066 (PC2 8500) Dual Channel Kit Desktop Memory Model F2-8500CL5D-4GBPK
1 x SAMSUNG 22X DVD±R DVD Burner Black EIDE/ATAPI Model SH-S222A - OEM
1 x Western Digital Caviar Black WD6401AALS 640GB 7200 RPM SATA 3.0Gb/s 3.5" Internal Hard Drive -Bare Drive
1 x Western Digital Caviar Black WD1001FALS 1TB 7200 RPM SATA 3.0Gb/s 3.5" Internal Hard Drive -Bare Drive
1 x XFX HD-577X-ZNFC Radeon HD 5770 1GB 128-bit DDR5 PCI Express 2.0 x16 HDCP Ready CrossFireX Support Video Card
1 x Antec Basiq BP500U 500W Continuous Power ATX12V Version 2.01 Active PFC Power Supply
1 x AMD Phenom II X4 955 Black Edition Deneb 3.2GHz Socket AM3 125W Quad-Core Processor HDZ955FBGIBOX
1 x G.SKILL 4GB (2 x 2GB) 240-Pin DDR2 SDRAM DDR2 1066 (PC2 8500) Dual Channel Kit Desktop Memory Model F2-8500CL5D-4GBPK
1 x SAMSUNG 22X DVD±R DVD Burner Black EIDE/ATAPI Model SH-S222A - OEM
1 x Western Digital Caviar Black WD6401AALS 640GB 7200 RPM SATA 3.0Gb/s 3.5" Internal Hard Drive -Bare Drive
1 x Western Digital Caviar Black WD1001FALS 1TB 7200 RPM SATA 3.0Gb/s 3.5" Internal Hard Drive -Bare Drive
I will be buying a new heatsink
http://www.newegg.com/Product/Product.aspx?Item=N82E16835103065&nm_mc=AFC-C8Junction&cm_mmc=AFC-C8Junction-_-RSSDailyDeals-_-na-_-na&AID=10521304&PID=3463938&SID=