The C-System looks physically nice, but aren't the stats look significantly less than the MPC600 (or am I reading something wrong?), I'm in the same situation have a really nice aluminum alloy case that doesn't allow alot of space (and I'm not choppin holes in this baby!)... Currently squeezed a Via Aqua 1300 in (money was tight at the time), looking for something small, powerful, and quiet!
(And yes I'd also like ultimate power, immortality and a nice new universe to rule over as absolute god!)