Water Cooling- custom vs kit

I have an i5-650 OC'd to 4.2Ghz in an Anetc 1200 and I'm dying to move to water. I'm a little apprehensive because of the setup and also the price. I was looking at a couple of pre-made kits, mostly the Zalman Reserator V2.

What I'm going for is low temperatures and a good Delta T (aren't we all) but noise isn't really an issue for me.

I'm only water cooling my CPU for now but I may be cooling my GFX card(s) later but woul want to do a separate loop.

The Reserator is ~$430 on Newegg and I would like to stay around and under there. I have poked around Dangerden but I also have a credit account with newegg that I would prefer to use but am open to other sites.

So as you can see I'm in a bit of a pickle but I'm confident that the internet will be able to solve all of my problems.  

Thanks in advance.