I've been running on a "dual-oldies" setup -- G4 Mini for main/personal work, and G4 iBook as my mobile unit/business HD. I often Firewire them together so I can do business stuff with my main monitor and keyboard. I finally decided that I don't mind an older/slower field unit (and I actually like the fact that if my laptop dies/gets stolen/falls off a bridge, I can just buy a "new" iBook for cheap as long as I have the data backed up elsewhere). But I really need to update the Mini to the latest model, because it just doesn't keep up with my multitasking needs anymore. Before I do, though, should I be worried about compatibility issues if I keep linking these two computers together as I've done in the past? I know there are some issues with booting an intel from a PPC. What else should I keep in mind? Thanks.