My system has been running for 10 days straight. Doing video editing, playing games, surfing, downloading....well all kinds of stuff. During this period my MBP has picked up 910372 ins and 1227516 outs. In general my system feels a bit slow at times but it's not a constant nuisance. When it gets slow I occasionally get the spinning wheel of death for a period of 5 to 30 seconds. Outs should never excede ins, right? So this could be a bottle neck? (EDIT: typo) I have 1.5 gigs of ram in my 1.83 Ghz MBP, would adding more ram change things?