you could get a Newegg.com - XFX HD-587X-ZNFC Radeon HD 5870 1GB 256-bit DDR5 PCI Express 2.1 x16 HDCP Ready CrossFireX Support Video Card with Eyefinity. which is around the same price as the 5850s but faster. The 6870 performs slightly slower than the 5870 but is more efficient on power, which would probably lead to less heat in your case when you are running sli.