Well that about wraps it up...
Thanks to the magic of Ndiswrapper, which has enabled me to install the Windows driver for my wireless network adapter under Linux, I am making this post from Firefox running on Ubuntu Linux. Apart from the network, this has been the simplest OS installation I have perfomed since MSDOS 6.0!
I do appear to have some sort of problem with my USB ports. Both my USB mouse and network adapter both have a tendency to disconnect themselves briefly every so often. With Windows, the network adapter is fairly simple to reconnect, with Linux, the only way of sorting it seems to be a reboot. I am going to try a powered USB hub, to see if that helps.