I'd get a quality Case / PSU Combo such as the Antec DF-85 w/ CP-850 (great combo deal) or the HAF 932 or HAF-X w/ Corsair HX850 as a minimum. Other choices would be the Lian Li PC P80 or the Thermaltake Armor+. While the DF-85 doesn't have some of the features in those other top end cases it does have a few that are unique which may tickle ya fancy.
At a 20% OC, a water cooling system is by no means required. Air coolers do a perfectly fine job at 50% OC's and above. Use the money saved for a 120 GB vertex 2 SSD, the Asus Rampage 3 Extreme MoBo. Skip the overpriced dominators and get a good set of low profile, CAS 6 DDR3-1600
im not exactly hurting for cash i picked a smaller ssd because im only putting my pagefile and a couple games on it ill still check out that ssd u mentiond, almost everything i picked i did so with a very stable system in mind a favor the asus sabertooth for that reason