The G5's time has definitely come. Apple and Adobe are both dropping support for it and all other PowerPC systems in their next major software release.

What I'm waiting for is the price on G5s to drop, as admittedly I've wanted one literally since I first downloaded the WWDC'03 keynote and saw Jobs up on the stage talking about the stagnation of the G4, and Apple's promise to ship a 3GHz G5 by that time next year.

Although I'll probably wait until I can get mine at the price of some low end G4s or most G3s.