EGKK931 , funnily enough I entered the world of wireless this week.
I have a Toshiba L20 (with wireless built in). I have to admit that I tried in vain to set up the damn thing myself , together with my desktop pc which has no ethernet port fitted. Watch how you place your ADSL filters on the BT phone line I had one in the wrong place and it costs me hours of head scratching and choice language. I could access wireless on the pc's but not access the internet..... watch out if you run an extension cable on one main phone socket for another pc/phone in the house.
In the end We used a USB Wireless unit into my dektop pc , after configuration of the router downstairs on the laptop.
Both machines now work totally wireless .... not being au fait with networking I ended up getting a PC Networking specialist in to do it for me , he charged me a minimum 1 hours labour for 30 -45 mins work. Worth it if you are liable to screw things up !!
Keep your old BT Modem + Leads and CD Installation Package to use in the future if things go pearshaped.....but dont try to run a router + Voyager ADSL modem installed at the same time ...that was one of my problems ...doh !!!
Good luck , it's brilliant when it works ... you'll be on the net all the time