the BSOD... every techs worst nightmare
Couple of things i can think of apart from opening it up and removing hardware parts one by one or having to reload everything, would be to use a Vista disc (i have one you can use), and then boot it into recovery mode and see if the "repair" feature works
Also, disconnect everything connected to the PC other than the KB/Mouse/Monitor, and see if it starts <-- Dave beat me to this part lol
Failing that... Let me it for a few hours. I would say id brotek it, but im actually qualified in this field