Personally I like the Vigor routers but they are very expensive. The Netgears are very good for the price as DJ can attest.
You will need a straightforward broadband router, as opposed to the ADSL router that DJ has. An ADSL router contains an ADSL modem which you will not require if you already have a cable modem.
It may be worthwhile looking for an 802.11g rather than 802.11b wireless setup as this will be more futureproof.