Swiftech H2O-220-Apex Ultra
 

Swiftech has itself another winner here with the H2O-220-Apex Ultra.
Ease of setup is of importance to me, and the Swiftech allows this as long
as you're patient and don't mind drilling a couple holes into your case.
Both waterblocks I tested were excellent performers, but the added
versatility that the Apogee gives you makes it a definite winner. For any
enthusiast looking for a high performing solution or a quiet solution that
doesn't give up the performance, the H2O-220-Apex Ultra from Swiftech is a
very solid choice.