wireless networking adaptor

i need a new wireless adaptor for my fs rig as the software for my 54bpm one has run away....
i was just wondering what kind of speed i should be looking for? and what prices to expect for them.
i gave pc world a call and they have a 125bpm belkin one for
i was just wondering what kind of speed i should be looking for? and what prices to expect for them.
i gave pc world a call and they have a 125bpm belkin one for