Our company is preparing a mac-upgrade and I want to make sure I have fast enough for each responsibility without overkill. Main tasks include keeping the entire CS3 system open most of the time, going back and forth, running extensive batch files in photoshop, editing 100 page Indd files, and managing/correcting 300+meg photos. For these tasks, a new G5 powermac would be beautiful, but is it necessary? Can we get away with a maxed-out iMac? As aa secondary task, we have a production manager/art buyer who will be running lightroom as a file management system, checking photoshop, indesign and illustrator files, making minor edits and occasionally running batch files. Rarely will she need more than one program set open at a time. Is a suped-up Mac mini good enough, or will she need more? How does a mac mini compare to an older 2.1 Ghz PowerPC G5 imac? Thanks for all the help!