Thanks VERY much for the replies - it's greatly appreciated.
Hi, as an update, just wanted to let you know that I got the issue resolved satisfactorily.
Case closed and here's the deal for anyone else faced with a similar issue. It appears that one of the Google products left some `update' piece that was causing the crashes even after the product had been uninstalled. After reading through my Windows Event Viewer, I could see a remnant, "GUpdate" that was suspiciously coming up in that log and then by deleting the "Google" entries from my registry, I was able to get the random reboots stopped. Removed from these two branches of my registry.