I think his best bet is to go with the Xigmatek, just like I went with the RCX-Z5. If I knew I'd like OC'ing as much as I do, I'd have gotten the TRU120.
No offense taken, I'm still learning how to do most stuff so I'm not gonna OC as soon as I get this computer; maybe in a month or so but even then I'm not gonna try to over-do it.
The Xigmatek looks like it would work fine for what I want.
Edit: As for the lapping, I really don't want to do that, I was reading someone elses post about it before and it wasn't all that appealing lol.