Ok...just got with the guy at a store and I think I will be going with this setup:

Hydrofarm Active air blower 265 CFM pulling through a Can-Filter 9000 118 CFM. I figure with the 4-5 foot of ducting that I will use to attach the fan and filter that it should lower the CFM's a little and provide adequate time/contact for the odor/carbon.

Any comments would be greatly appreciated as I will be ordering this tomorrow.