For Macs - the hardware is pretty much the same as PC's... and Apple's Website (hit the "Store" tab once there) has all the prices. Just be prepared for a bit of sticker shock @ the upper reaches.

The plus side is that it keeps it's worth for a remarkably long time. I paid $2k for my Dual G5 in 2003-2004, stuffed 2GB of RAM in it, and it still troops along just fine today. Put it this way - it came with OSX 10.3, but I can stick in OSX 10.5 when it comes out w/o incident.

Regd's,

/P