Base model, 2.3GHz 8GB 256SSD, running DP4. Extremely annoying lag when initiating Mission Control. I know there are other threads discussing this, but I can't seem to find much on people running DP4 and having problems with Mission Control. Safari does lag a bit when scrolling, as do many third party apps. Any other similar experiences? I mean, using my wife's MB Pro 2.4 C2D is wayyyy smoother with the transitions/animations. Sorta starting to piss me off. ...but the display is absolutely brilliant.