The old dog of a tower system that i have in the living room, i built in 2009 and apart from the odd crash now`n then, it's fairly bullet-proof i suppose.
I do know enough about computers (pc's), to keep her in decent working condition, although the Mac Pro that i bought for the studio 18 months ago.....well, i'm still learning to ride that one but all in all, it's not given me much trouble really but if it ever throws a wobbler, then i'll have to get a mate in to sort it out, i have a few who are Mac nuts but in my own opinion, computers still aren't quite there yet.
EDIT: And just to prove my point, Firefox crashed just after i posted this...post!
G ; )