I purchase gear for my business. As ugly as the new G5 is (to me - Jonathan Ive must have been strangled with all those airholes) nothing will stop me buying the top-of-the-range version at these prices:
3 years ago: 450GHz DP, 768 ram, 30GB HD, SCSI card, no Superdrive, standard video, internal Zip etc: £2,850-ish
This year: 2GHz DP, 2 gigs ram, 160GB HD, don't use SCSI anymore, Superdrive, Radion 9700 Pro card, probably won't bother with Zip this time, Bluetooth, etc: £2,200-ish including VAT.
Wait for Panther to appear and save £600 or so between old mid-range and new top-range. Suits my business's 3-year Mac budget just fine!