Watercooling isn't wasy. I'd post any questions you have, take a look through this sites kick-ass articles and maybe browse the forum's old posts. Take a while to do it. You'll end up with a much sweeter system and [hopefully] won't fry anything along the way.
Anyway I sort of answered your question in that other thread, but
www.overclockers.com, www.procooling.com, and people in this forum and the
have tried almost everything outHardForum have tried almost everything out and can give advice.
Also don't mind emailing people that you have questions for. The above setup was my first and you can be damn sure I emailed everyone I could find that had used the parts in my setup and I changed my mind a few times based on what they had to say.
Hope that helps.