Bitcoin mining basics please help

I have just put together a new system and was thinking about using my old system as a bitcoin miner. Can someone give me the basics or the easiest way to go about getting started. Any help would be appreciated.

My old ststem is hope its good enough to get started.

MSI K9A2 Platinum

Phenom 940 deneb

2x 3870 sapphire

2 GB Ram

750 OCA power

I wouldn't bother mining with them if you want to make money. The power costs will be far greater than what you'd make in bitcoins.

if you have free electricity though, I guess you could do it. I posted a while ago and it's called "bitcoin mining guide and FAQ" it might've dropped off the front bitcoin page. That has all the details though. Ask if u r still unsure about anything.