Geek heaven or hell?

Recently I was dropping my daughter and a friend back after a sleepover and I spotted in the house a laptop and an old style iMac.  I mentioned them in passing and it transpires they are both borken.  Being borrasic I mentioned I could fix them.  No sooner said than I left with them stowed in my boot and now have them parked in my kitchen for my attention...

I'm sort of looking forward to it and not - the iMac seems to have a dodgey mains lead so it hardware, the PC gives a BSOD after windows boot - so a Knoppix candidate (now WHERE did I put that CD?!)....