The fans separate from the case are not widely available on the market yet. They should be in approximately 2-3 months though.
What would you use this large of a fan for anyway? A personal case mod? In terms of moving air, right now, a good 120mm (90+ cfm) fan actually moves more air than the 250mm (68 cfm) fans that are being offered by Thermaltake. Not to mention that they fit in more applications...but...that is soon to change, I am sure....
68cfm on a 25cm fan... thats pretty crap. The aerocool version on the extreme engine 3t have 167cfm. Too bad they arn't led and that would be even better. :wink: