Lo and behold, 2 months after I crawl under the house running CAT-5 cable for the Xbox, and today I stumble across this link via
Penny Arcade for the
Wireless-G adapter for Xbox. This would have saved a fair amount of frustration in the cabling process, however I'm still glad I did it - for large amounts of data transfer you really do notice 100mbps over 54mbps. However, this little thing would be perfect for anyone with a couple of PC in one room, and an Xbox in the next - for use in streaming, or Xbox live, or whatever.
As a side note regarding Xbox live, the kits have finally started appearing on NZ Shelves. However the requirements states that a 256k+ is required. Of course the majority of connections in New Zealand are 128k or less. I'd be interested to know if anyone on a standard Jetstart connection has tried the service yet, and if so, how well does it run?