lol, no Aerosol=CFCS!!! 😱
[Edit]: are you sure they were neccessary w/ the G4's? Mine has been running for years under a desk in an old dusty house with several shedding pets for years. W/ the G5, the one I use at work resides in a rather dusty sideroom and I've experienced no problems or performance abberrancy. Also, I've heard the Powermacs deal better with dust than most PCs.