unless you're buying an h100/h80 for the aesthetics (along with decent performance) I'd recommend a phantek one instead. They perform nearly as good as Noctua but without the ugly brown and beige. Those closed loop water coolers aren't usually recommended since price to performance/noise they aren't as good as a decent air cooler. Also they don't last as long and can develop problems that don't exist with air coolers.
You may be able to get a 4.5GHz oc with the 212 though. It'll run a bit hot but depending on how well your cpu (i5-3570k?) OCs, it may work fine.
I'll take a look on the phanteks