Before I take and post these on the ol' Craigslist, I figured I'd post them here first. I've got two XFX Radeon 4870s (1GB GDDR5) for sale for $40 each and a Dell Radeon 4870 X2 with Backplate for $80. I never had the PSU/Motherboard to do quad crossfire with these cards, but I did have triple crossfire with the X2 and one of the single cards. They all work and function brilliantly. They've been run at reasonable temperatures and pretty much look the same way they did when they came out of the box. I've even got the original boxes for the 4870s. Will ship anywhere continental US, or, if you're reasonably close to the Twin Cities, Minnesota, we could meet up and complete the transaction in person.