You may want to vacuum the vents with a lower powered vacuum and have it standing. I currently live in AZ (moved from NYC) and this place is the king of dust. Is the clicking loud? And what happened last time with your PS3, did you get the YLOD? PS3 and Wii have very low failure rates so I hope that your problem is fixable, but ya, throw me whatever info you can, I know a guy that knows a guy that does all sorts of repairs (fixed my best friend's 360 rrod and made that thing last an extra 2 years lol, but he also fixes ps3's and wii's)