PS3 60gig B/C surviving owners

[Videogirl]

I got mine (60gb b/c) in April 2007 for 670$ and ugraded it to a 320gb HDD in july 2008.
I openend it once to vacuum some of the dust but the bigest problem I've ever had is three or four freezes while playing Warhawk and Killzone 2 + the fan got noisyer, beside that it works perfectly fine.