[andrewsvalesen]

The silverstone fans are 120mm, and 1 is a stock fan I think it is 33.3 CFMs.
The other silverstone fan is the top quality fan.
Newegg.com - SILVERSTONE FM123 120mm Case Fan - Retail
I'm pretty sure its that one. It also comes with a baby silver fan controller for a 3.5 slot (external.)

The vantec specs:
Air Flow 84.1 CFM
Noise Level 55.2 dBA
Newegg.com - VANTEC TD8038H 80mm Case Fan - Retail

I have 1 more 120mm fan that a blue LED, and blows lots of air as well.
Newegg.com - Rosewill RFA120L-B 120mm Blue LED Case Fan - Retail

I also have 2 80mm CM stock fans, they blow minimal air, but also have minimal sound.

Finally, if you want. I have a zalman fan controller, (15$ if parted)
Newegg.com - ZALMAN ZM-MFC1 Fan Controller Panel - Retail

I'll sell this all for 40$ shipped.