dude, calm down, he was just trying to help.
now I would def. go with 1/2 tubing, make sure all your components are 1/2 also.
D-Tek is a pretty good company, not sure how well your block's gonna perform but I went with a sure bet, a Swifty. and your pump, I dunno, many people suggest something in the 300gph range. I just bought a Iwaki for pretty cheap in the FS forum, it's a $160 pump, got it for about $50. more flow, more cooling.
anyway, there aren't too many H2O freaks here, as you suggested, maybe you should post this over at OC.
good luck.