Update on my CD MBP...
with the original logic board, the computer would shut itself down when CPU temp reached 225F (using iStat Nano). The easiest way for me to get this to happen was converting a video using Popcorn or Handbrake. Repairs as follows:
- The fans were replaced 3 times,
- the logic board was replaced 4 times (new logic board got to 255F before shutting down),
- the temp sensor/cable was replaced 2 times,
- the heat sink was replaced 1 time
When picking up the computer from its 3rd repair, I tested it in-store by trying to convert a movie... shutdown at 255F as expected. The genius started running diagnostics and it shutdown on him as well. Now, a week after the 4th repair in 5 months, the store called to let me know my repair was canceled and to come in at my convenience to pick up my new 15" MBP.
Old: 1.83GHz CD, 512MB, 80GB
New: 2.2GHz C2D, 2GB, 120GB... and converts movies like nobodies business!
Thank you

! I'll be in at the end of the week to buy a new iMac and iPod for the wife!