Antec 900 all the way.
1)It comes with 3x120mm + 1x200mm fans already installed w/ the option of you installing 2 more 120mm fans.
2)It has better rating on Newegg
3)(personal preference here) It doesn't have that weird thing on the front
4)It allows you to change your configuration between
A)3 external 5.25, 6 internal 3.5
B )6 external 5.25, 3 internal 3.5
C)9 external 5.25
5)It also has a 5.25-->3.5 conversion bracket for one of the external slots.
6)Its cheaper (if you get a MIR.) I got mine from Newegg for 89.99, + free S/H
7)No weird door that you have to open to get to your external bays.
Antec 900. Awesome all the way. http://www.3dgameman.com/content/view/6347/48/
Nemisis. Not so awesome.