For the most part, any respectable (Scythe, NZXT, Lamptron, Logisys, AeroCool, Zalman etc.) fan controller will handle pretty much any single fan per channel, and in some cases you can use a splitter to connect a couple of fans per channel.
The big issues are:
1. The fans themselves. High static pressure usually goes hand in hand with high operating power. Check the documentation of the fans you are planning on using.
2. Start up power. All fans require more initial current at start up than they do once they are in motion. Here's a portion of Scythe's (Nidec) GentleTyphoon spec sheet:
Continuous use rating is 123mA, so 0.123A * 12 volt = 1.476 watts
Start up rating is 530mA, so 0.530A * 12 volt = 6.36 watts.
The start up power requirement is the one you need to take into consideration when looking at a fan controllers wattage-per-channel specification. Allow a generous margin above the calculated start up power for each fan - especially if you plan on using a splitter.
I picked the GentleTyphoon because they offer a good compromise between static pressure, power, and noise. You might also consider fluid bearing fans (since they are becoming more reasonably priced) from Corsair, Cougar, and Xigmatek, the dual ball bearing offerings from Silverstone (FM series) and Koolance (they are made for radiators but require
a high power input), and the Cooler Master JetFlow which uses a POM (Delrin) bearing - steer clear of most (all?) other Cooler Master fans since they are sleeve/rifle bearings and almost always louder and less effective then their specs suggest.