I bought a new core i7 system last monday. Core i7 920, Asus P6T deluxe, 6gb RAM, Asus 4850, Seagate 640MB HD, Antec nine hundred case. It runs really well - no lag on 5 instaces of WOW (60fps+) with firefox (6+tabs) and photoshop CS3 open. I haven't been able to get any one of the cores (it shows up as 8 cores in vista b/c of hyperthreading) to max out for more than a few seconds. It was a bit pricey, but I was upgrading from a 5+yr old barton athalon 2500 with 1gb of RAM - so I'm pretty happy.