I bought a wireless router ~ 5/6 years ago and while I'm in the process of upgrading the modem (free from Comcast) and purchasing a new desktop, should I throw some more money at a new router? I've got a Linksys 2.4GHz 802.11b. My wife bought a notebook that will obviously be in the mix. It just seems like common sense that if everything else is being improved the router would be no exception. Is there anything in particular I should look for? I trust you people more than a salesperson. Thanks!