I just used "Toast Anywhere" to back up a 4 GB Photo Collection from my Powerbook to my DVD-R equipped iMac. I used AirPort, turned on Recorder sharing on the iMac, and it worked great! Granted, it took a while to send 4 GB over AirPort Extreme, but both machines were usable so I kept on working on the iMac while my girlfriend worked on the 12" PowerBook in the next room. I know I could have used Target Drive mode to transfer faster, or even wireless transfer to the iMac, then burn. But Toast made it so easy! Anyone having doubts about upgrading should definitely let doubts rest and buy Toast 6. Oh yeah: I have AirPort Extreem on all the time, I have the Apple bluetoth wireless mouse/kboard, I don't have a land line so I am always on my mobile when working from home, and the nuker in the nuker in the kitchen is used often. So far, not a single sign of interference in what should be a crowded 2.4 Ghz lane. Uhh.... So Yeah: Toast/Bluetooth/AirPort Extreme kick some serious freakin' butt. 
