PATA drives should not be a concern.
I have about 8 of them lying around my apartment. When I want to use one, I simply install one of the three controllers I have and all is good.
Case designs have given up pretty much on concerning themselves with PATA drives.
If you think "controller", I suggest Highpoint as the manufacturer.
I don't know anything about SLI/Crossfire, etc., I don't game
If you are running 4GB of DDR2...that's no problem...I just looked up the board specs and see that it cannot handle DDR2.
OK, I'll stop...just expressing how I look at things on my two systems (I spoil myself