Bowlers is shocking, get up to scan or aria, pay the same possibly less and no need to pay to get in.
Cooling I'm no expert anymore, I used to go large copper heatsinks with heatpipes and a nice slow fan on there then moved to water cooling in a later gaming rig I built but moved to consoles for gaming to save money. Now I just stick something in there along the same lines of before huge heatsink with a big slow fan on the front. The problem is that most fans are a little pants so research what you buy most heatsinks do the same job very well the main thing is to make sure the air flow in to the case is good and equally good if not better out of it. I usually go with 1 in and 2 out, make sure cables are tidy and routed out of the way to aid airflow, and most importantly keep it as dust free as you can. I shut my server down over the weekend for a clean out, it uses stock Intel Xeon coolers on both CPU's, they were screaming away, de dust, blown and sucked, fans cleaned, intakes cleaned and its totally spotless again fresh arctic silver 5 paste applied and the result is no longer screaming fans and near silent even at full tilt.
I gotta buy some more paste before I do the desktop.