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#11
You're on the right path but don't forget to add a front case fan as well. Maybe get a nice twin pack of these:
XIGMATEK CFS-SXGJS-BU2 Case Fan - Newegg.com
Use them in push/pull and take the stock CPU coolers fan and place it in the front of the case, but you may also want to speed reduce it with a resistor!
Sure you'll be able to put almost any PSU in that case. If you're going with a new case of that quality it will have a air flow scheme already. Cool intake from the front, hot case air exhaust from rear and top. Your choice will be to place the PSU with cool air from outside or warm air from case. I like warm air from case unless you have this high on a desk then draw air from outside. Now if you upgraded from air to a sealed water cpu cooler then we could talk more option for air flow but that's not the case! No pun intended !