See I do the opposite. I usually work on the G5 (I have a dual 1.8) since I have dual widescreen monitors (The 20 inch cinema display and a Sharp widescreen). The work area speed is bareable though I do hate losing my camera view window - it goes blank and I have to minimize and then maximize the program to get it back - but the trade off is I am on the same machine I have email and chat etc running. I then save it to a network share and make the IBM actually render. This leaves the main mac open again to work with any changes I am thinking about while it goes. I love the vue rendering with my G5 and my powerbook, but I really want ALL my computers to share in the load. I might buy two of those sub $500 macs that are rumored to be announced on Jan 11. just to use in a render farm.