Overclocking these days is easy, but do you really want to?
A large air cooler shouldn't be louder than a stock fan because the fan is larger. It can move more air while spinning slower.
This is the recommended large air cooler for an Ivy Bridge:
COOLER MASTER Hyper 212 EVO RR-212E-20PK-R2 Continuous Direct Contact 120mm Sleeve CPU Cooler Compatible with latest Intel 2011/1366/1155 and AMD FM1/FM2/AM3+ - Newegg.com