This is the Buffalo WHR-HP-G54 router that sells for
as little as $60
at all the local electronics stores like Circuit City, Best Buy, and Fry's or it can be ordered online. The WHR-G54 sells for
as little as $50
and is virtually identical except for the fact that the WHR-HP-G54 has a receive side amplifier which helps the router hear faint laptops coming in on long-range connections. This particular router can run DD-WRT
this specific upgrade procedure
. DD-WRT can turn this cheap device in to an enterprise class product with enterprise features normally found in devices costing hundreds of dollars more.