If you don't intend to extreme overclock( I define this as 4.6Ghz and above on a Ivy Bridge) you don't need any more water cooling than Corsair H60, you can probably go cheaper with a $30 air cooler like Hyper 212 Evo and do just fine in OCing in the 4.2-4.5Ghz range.
High end water coolers like H100 will be difficult to set up in a standard mid tower case, and cost your at least $20 more than high end air cooler like NH-D14,Silverarrow,Phantek PH-TC14PE which offers similar cooling performance.