If I don't know what I'm doing, I take it to a local computer shop, whom I trust.
I had a near-scare, and luckily it was the motherboard that blew up, not my hard drives, and the shop fixed it for me.
Since then, I got the incentive to back up everything. I picked up a Western Digital 320 Gig HD for $100 and a USB2.0 external HD enclosure for $20. Use one of the freeware sync program, and you're DONE!