I managed to fix my PC after the catastrophic meltdown it had last night. Turned out it was just the SATA cable that connects it. I replaced that and it all worked again. Gave the inside of the case a good vacuum too. Everything going strong again...back on teh intarwebz.
Also went for a drive on Eastlink today to see what all the fuss is about. Full write up on my Facebook page. If you aren't a friend of mine on there then TOUGH! you miss out :P