So you would like to build a small form factor PC for gaming or work? The CaseLabs Bullet BH4 mATX Case is worth a look. It is a compact case that supports mATX, mITX motherboards. It has 4 PCI slots, 4 SSD and 2 HDD locations, and 2 x 120mm front fan mounts.
This case also comes with handles and dual windows. Bullet has an all aluminum construction.