As part of their Memorial Day weekend event, MicroCenter has discounted the wildly-popular CoolerMaster Hyper212 PLUS to a mere $10.99 - and that is before the $10 MIR from CoolerMaster drops the price after rebate to a mere $0.99. Even better, this is NOT an in-store-only deal!
http://www.microcenter.com/single_product_results.phtml?product_id=0315397
http://www.microcenter.com/single_product_results.phtml?product_id=0315397