You shouldn't have a problem with 3 drives in the system.
I don't think you need a RAID controller unless you want to migrate from one system to another.
Thank you Evongugg. I notice That there are 3 versions available for asus p6t mobo. What's the reason you'd chose Asus of gygabite?
And have taken on board the cooler, plus it's £30 cheaper.
A bit more on not needing RAID, I just built a new system, and transferred my two 500GB drives that were built as a RAID 0 array with the ICH 10R on board intel controller. Moved them to the new motherboard that also has an Intel controller and it recognized the array and all the data on it with no issues. I was prepared to reformat the drives and rebuild the array, when it turns out I didn't have to do anything at all.
Message edited by wathman on 10-13-2009 at 03:59:17 PM