This has probably been done before, but it is on my mind as my good, ole G4 Powerbook has started making a god awful noise after 15 -20 minutes of use. (I'm no computer expert, but my guess is that the fan is going. I assume this thing has a small fan).
Anyway, it looks like I'll have to repair or replace it pretty soon and I'll have to decide whether to stay with Mac for home use. (I very likely will.)
It made me curious what the rest of you do.