1. Yes.
2. Yes.
3. Belkin stuff is good my Dad has it and I have Linksys so can recommend that too.
He has ADSL so I have only used the ADSL Routers. My Linksys is a cable router only. 11Mpbps only but fine for internet.
My Dad got his stuff from
www.savastore.com. £100 for a 125 ADSL router, PCMCIA card and PCI card bundle. Very good value.