I just did this for the first time a couple of weeks ago.
I took my PS3 to a repair shop for the Blu-ray drive and the guys there suggested that i replace the thermal paste as soon as i could to avoid the LYOD problem.
I did it, bought Arctic Silver, a compressed air can and some thermal paste remover, cost about £10 in total from Amazon.co.uk then spent an evening cleaning it out and replacing the paste.
I'm no computer expert, but it wasn't too hard, i followed some videos posted by some english guy on youtube which were a real help. hardest bit was remembering which screws when in which holes when putting it back together!
Seemed to work alright, but i don't think it's running much quieter, if at all.
Atari 2600, Sega Mega Drive, Game Boy, Game Boy Advanced, N64, Playstation, Xbox, PSP Phat, PSP 3000, and PS3 60gb (upgraded to 320gb), NDS
Linux Ubuntu user
Favourite game: Killzone 3
