Yea, my YLOD is from the GPU overheating. I've successfully reflowed and reapplied thermal paste to the PS3 and it's up and running but I question how long it will or won't run before having to do it again. The good news is that I was able to copy all my saves, sans the locked ones, and retrieve fallout from the blu-ray drive. The 150 dollar refurb is kinda a ripoff b/c they only give a 90 day warranty and you have no idea what was fixed, so 4 months later you could find yourself in the same suck situation, another 150 dollars.
If you're interested, google it and check out the gilksy videos, he's awesome.