The machine will be about one-half the cost of the analogous Mac Pro parts via the Mac store, from the comparison I did. (plus the PCI expansion card for recording audio, which is supposed to sound better than a firewire connection). I supposed some of this may be debatable, I'm no expert.
I have not ordered the machine, but it was helpful to realize some of the things that can make a difference, like, video card, how fast the ram is, how many internal drives you have. The other stuff, is the obvious stuff, like CPU speed, how much RAM, how many cores, and all that. You do really want to be careful, because some people get all the right stuff and then have compatibility issues they did not foresee. You don't want that!
Let us know how it turns out with with what you get.
