Ya only got 6 80mm fans that should be easy.
Ok front of the case,
intake in the front of the case, for your first, then
front Motherboard side of the case for , intake hole that makes 2
Bottom near the front of the case, under the case where the hard drives go. Yes sucking air from the floor area up into the case, that would be 3
Exhast
2 in the rear of the case and one on upper left corner on the side of the case. For a total of 6.
If you want to have some fun, also another 80mm blowing onto your CPU fan, strap one more below that cpu fan so that is is pulling air off of your northbridge while the same time helping to remove heat that your CPU fan is pushing into the CPU cooler. Oh and a spare hard drive spot will fit an extra fan blowing air over your ram.
Ok this is way overboard. But you get the pic.
IN short order, just make sure to be carefull that the fans all push air starting from the front lower section of hte case to the rear upper section of the case. In a sort of "Z" formation. I just added a 12th fan to my system. (a total of 7 80mm fans) not includibng the 2 in the PSU. The one thing you do need to worry about it power for all those bad-boys. All of my fans are 30+ CFM each. Drawing .13-.15amps each.