I've had my 13" Macbook(2009) for about a year now(I bought it from Best Buy for REAL CHEAP) and noticed that it gets pretty hot. I mean, it doesn't burn my fingers off, but on a scale of 1-10, I'd say it's at an 8. All I do is watch videos, listen to music, browse the net for an hour or so, but nothing major. I was thinking of reapplying the thermal paste and cleaning the CPU fan since I have some Arctic Silver 5 lying around and I'm pretty tech savvy. Any ideas?