We have a big distributed-computing team doing the 17-or-bust project and a bunch of health-related molecular-simulation ones too, plus SETI@Home and some others... watch for a front-page write-up in the next few days on AnandTech.com 😀
As for the mobo, how about double-checking that the RAM is all the way in (sorry to suggest obvious stuff, but you never know) and push down and rock the AGP card to make sure it's down past both rows of contacts in the AGP slot. If you don't have an RPM-signalling fan on the CPUFAN1 header, you will want to again hold down the Insert key while powering up, or else add an RPM-signalling (3-wire) fan onto that header.
If that doesn't get it going, then maybe unplug all drives and try again. If nothing, then take the board out of the case and try it on cardboard. If nothing, take out the RAM and video card! It ought to beep error codes with no RAM! :Q If it won't beep error codes with no RAM, no CPU, no video, then I'd say either the board is toast or the PSU is toast. I hope it ends up being something minor. Remember that the board will expect RPM on the CPUFAN1 header by the DIMM slots or else it won't POST without holding the Insert key (until you can disable FOC anyway).