OK, your first choice is based on the outdated LGA 1366 platform (succeeded by the LGA 2011 platform). Your second choice is much better. It will give you better performance now and the ability to upgrade to Ivy Bridge later this year. For your GPU choice, if you're aiming at the 69xx series of GPUs, I'd recommend the 78xx series that was recently released. These cards will generally outperform their previous generation counterparts and do it using significantly less power and heat. The price right now is a bit high but I can tell you from experience that I'm very happy with my purchase (I own the 7870).