I've had the same decision to make, but have decided on the abit. I was going to go with the Asus P5K-E but one of my coworkers did a build with the abit X38 and it convinced me to go with the IP35 Pro, in fact I'll be ordering it from Newgg while there's a $50 rebate and free shipping. Think that deal is good until June 6. Was going to wait for the prices to drop on the P35 boards as I'm on a tight budget, but there is no guarentee that that will happen.