Ya I figured it was overkil, but just couldn't pass it up for the price. Basically the same with the PSU, comes out to like $23 after rebate. But I could probably just hold onto it and get the corsiar if it is going to be that much of a waste on the power bill. It is going to take me a while to get to 11 HD's. I have the Segates in my HTPC right now, I actually linked the wrong one, http://www.newegg.com/Product/Product.aspx?Item=N82E16822148681 , but can go another route if those aren't very reliable. they've worked great for me so far.
I ended up picking up the 5x3 right off the bat, just becuase I like the look of it haha. Will probabl fill that u first and then go for the internal cages.
Thank you very much for the help!