Its nice having a 1KW PSU, amazingly enough hardware is coming out that can actually make use of its wattage. The size is kind of a downer, takes some finagling to get it into most cases, maybe a little Dremeling... but once its in, power problems become a thing of the past.
I had an Enermax Liberty 620W PSU, and after 3 months it popped, no rhyme or reason. Thankfully nothing else in my setup got damaged, bought a PC P&C 610W for my backup pc.
You can go cheap with some hardware, especially if reviews are favorable... but for a component that can destroy all your other hardware should something go wrong, I prefer to spend a bit more for piece of mind.
Also, I've read that modular is good, but not as good (yet) as non-modular(?) PSU's. Yes, the Galaxy is only half modular, and it is nice to be able to disconnect unused cables to keep clutter down in a case, but it's still modular. The upshot is that its less expensive than a PC P&C while still being a respectable brand name.
TJS