Alright gentlemen I have been pouring over the internet looking at electric fan options. Suppliers come at you from all angles....most claim one is better than the other. All with varied performance ratings, all with widely varied pricing...so for those running strictly electric fans what manufacturer have you all been pleased with for both cost and performance w/o breaking the bank? I would think above all CFM is out front with 1st choices. Again, in this case (2) 12" puller fans mounted to a shroud.