Anybody pick up Mass Effect for PC? It's on sale at Best Buy for $39.99 this week, I'm debating buying it, but the system specs specifically list the radeon x1600 pro as being NOT supported. I'm running a late 2006 iMac with the x1600, so will it simply not run, or is performance going to lag? As a point of reference, I found Bioshock perfectly acceptable at medium settings at 1280x720 on my machine.