Hi, I recently got a hold of a reference design gtx 680, I am not even going to install it until I get it covered with a block, but i'm not sure weather or not I should get an XSPC block or not, I've never used XSPC blocks before (except the RASA cpu block) and I'm really not sure weather or not it would be a good deal (XSPC Razor 680 block is 80$) to get the XSPC over a Koolance 680 block (130$) due to the savings when getting the XSPC. I know that koolance products are well made and have used some of their blocks in the past, but XSPC is relatively new and I just wanted to hear what others think of the brand?