[Fireskull]

Yup,

Crossfire is easy to do, from what I have read. The HD 5670 is good enough for IL-2, for now.

I havn't actually looked at any cards since the 4870 had just come out, so I'm sure but does the higher number (5670) mean it's better? or does the 5 mean the new range and the other number mean how good it is? or am I totally wrong..

No, not necessarily. The numbers that you want to compare are the clock speed ( Ghz ), memory chache ( MB ), memory speed ( usually Mhz ), and RAM ( get at least 3 or 4 GB ). Other things effect a chip's performance but I'll spare you the technical stuff.

It's bedtime for me, but if you post soon, I'll answer in a few minutes.