Exactly,from what I've been reading it seems to be the best setup to use,cool air is dragged from the front of your case inlet fan across the heatsink and pushed away back out to your waiting exhaust fan mounted on the back of your case
Thats in an ideal situation,for some reason though some CPU Coolers point in strange directions,down towards the back of your GFX card
or even up towards the PSU
Not exactly the best idea
I've been looking at.
Thermaltake ISGC-200
Scythe Mugen2
Thermalright True Black120
Scythe Katana 3 (Not to sure about this one
)