Now I have dual band networks!

The Airport Extreme (Gigabit) arrived by a huge DHL lorry around kl.12.. of course I had to go at it like a bull in a china shop, and an hour or so later I have both networks sitting on top of the PC and Airport Express in proxysta (bridge) mode working towards the iMac. I have also installed Rogue Amoeba on both machines (it lets you know when the speakers/stereo is in use)

Oh yes.. the E61 has been set up on the AE 24 network as default, as have the n770 and n800. All work ok, which is what I hoped for.

Haven't tried the E61 downstairs yet, but I expect it will be even better now that its seperated b/g out.