I wouldn't recommend the NZXT Sentry 2 I have one and I only use it to monitor temps and even those are off by a few degrees. On my Sentry 2 I get an annoying clicking noise from just about ever fan I use with it. try out this >>
Scythe Kaze Master 5.25IN Bay Fan Controller Backlit VFD Display Fan Temp Black - Scythe - KM01-BK it seems better than the sentry anyways.