It may seem odd that we're taking a look at an HD 5850 card in 2011, but Sapphire just released an "Xtreme" edition that's well worth the look. In addition to great pricing, the card features an improved VRM design, a more efficient cooler, and a shorter PCB. But, in the end, it's the $150 price tag that makes this card an absolute winner.
Any major computer upgrade generally requires a full software reinstall too. No so if you heed the advice in the guide to Upgrading a Motherboard without Reinstalling. PCSTATS Tips