Default top specs (i.e. not including "Ultimate" or custom built specs):
Dual 1.42GHz PowerPC G4
2MB DDR SRAM per processor
167MHz system bus
512MB PC2700 333MHz DDR SDRAM
120GB Ultra ATA/100; 7200 rpm
(New) SuperDrive (DVD-R/CD-RW)
ATI Radeon 9000 Pro with 64MB DDR SDRAM
Four PCI slots (33 MHz)
One FireWire 800 port
Two FireWire 400 ports
Four USB ports
Airport Extreme ready
Bluetooth ready
...and comes with iLife
Out of interest, did this page always exist, or has Apple become more concerned about professional customers?