my 1st PS3, got RLOD'd during GT5 Prologue intro over a year ago. Since I got a replacement PS3 FAT, and a thirdparty Air cooler, and SSD drive (only 60GB but who cares, it's only for GT5 & Rockband 3) , it's been churning along fine for 4 hours a day on average, ever since.
I have a recurring bug, that GT5 now starts with no sound, its annoying, I can only cure it with 2 game restarts. Occasionally the PS3 also starts with "new HDMI" detection as well. Hope it lasts until PS4, otherwise I'll just have to get another PS3! When the PS4 and GTx does finally ship, I will go place my PS3 someplace networked and dark, and let it Fold @ Home till it croaks.