As I say when ever this comes up. I got water cooling because I was bored when my PC 'blew up' and becuase it looked really cool.
Loads of people will say that the TT kits are crap, I will say the cooling I get on the BW SE is good, but my friend gets 3*C cooler but he paid £150 more than me and has his rad on the front of the system with cool fresh air blowing on it.
In the US you can get a custom kit for the same price as the TT kits, so it isn't worth it there. Due to you having a Hiper type R, I assume you are in the UK, so will say the price of it, is worth it, and it was great fun setting WC up anyway.
I have some picy's on photobucket to 'wet' you appetite.