Should I get into mining...

[TechnoD]

Hey guys,
So i just got my hands on 2 Radeon HD 5870's. For starters, they were free, so i am not worried about the whole "the cards will pay for themselves."
I have read a bit about GPU mining and have a couple of components lying around that I know will work:
1) 500GB HDD
2) Display (1280x1024 Resolution)
3) Mouse and Keyboard

Alright, so I have a few other pieces of hardware, but I am not sure if they will work or if they are worth using:
1) ECS EliteGroup A780GM-A with AM3 socket compatible bios upgrade. link: http://www.ecs.com.tw/ECSWebSite/Product/Product_Detail.aspx?DetailID=892&MenuID=20&
2) 4 x 1GB DDR2 RAM (with the above mainboard)

First Question:
Is it worth it? How much money can I mine from these cards, and what should I mine (I read about all sorts of different coins out there, not sure which one to do).
Will this hardware work? I read somewhere that you can use PCI-E x1 to x16 adapters for the graphics cards, but will that diminish performance?

If the above mainboard and RAM will not work, can someone recommend a cheap and viable alternative?

Thanks,
TechnoD

 

[Unolocogringo]

If your electricity is free, then you could make some money.
Otherwise the cost of the electricity will eat all of the money you make mining.

The memory and motherboard are compatible.