Well it looks like it may have been a power spike which effected the PSU, SATA drive, main CPU and DVD writer!! (and my 5950U if I'm really unlucky, can't test without the big psu)
Not the best of situations but at least I'm running the collection of spare parts I was using for testing, dropped a gig of CPU speed, 512MB ram and GFX card but at east I have a machine
Not the best of situations but at least I'm running the collection of spare parts I was using for testing, dropped a gig of CPU speed, 512MB ram and GFX card but at east I have a machine