Case Mod Forums

ars
Lots of know-it-alls here
bit-tech
Popular UK-based case mod forum--a leading case mod forum
ÊÏÕÔÉÁ, ÔÑÏÖÏÄÏÔÉÊÁ ÊÁÉ mods
pctechnology - overclockers mod forum (in Greek)--a friendly, active community
matrix orbital
I run this one for Henry
pheaton
I run this one for LP
xbox-scene
X-box modding site with an active forum
yoshi's forums
Yoshi from TechTV's "The Screen Savers" has a nice board with some good people that hang out there.