Thanks for the reply...
I have taken on board what you said and adjusted the current hardware setup. I have added the WD 500Gig GP SATA II drive for the OS.
I'm considering the following as the SATA II Controller card, but haven't been able to find out whether it is compatible looking on the WHS support site or the promise tech site.
http://www.promise.com/product/produ...product_id=139
Is there a better compatibility site out there?