Thanks for all your help, guys - now delighted to say that after a bit of fiddling about this afternoon, our wireless home network is now up and running! Seems to be maintaining a decent speed even with self and son number 1 on quite a lot. Will be interesting to see how it copes once I get my iMac kitted out and dipping in to the system.
Also discovered another network nearby - maybe next door's got one!
Roll on the speed upgrades
