Well, just played a bunch of SCII on my i7 SP3 and I am very pleased. I played it a lot on my SP2, but it felt sluggish at 1280x720 resolution. On the i7 SP3, at 1280x800 resolution, it felt great, no sluggishness at all. The fan did blow a lot, but not as loud as my SP2 used to blow. I was afraid of getting the thermo icon and it rebooting, but it was fine. The only issue is that SCII doesn't like 150% scaling, so your mouse doesn't moved. Have to set scaling to 100% then it works fine, which is annoying since I then have to change the scaling back to 150% after I'm done playing.