My Airport Extreme is in a fixed location in the house... 2nd floor, far corner of the house. It's the only place the Comcast line comes in. I get coverage all over the house, but downstairs the connection is much slower. I can get 30mbps upstairs, but only about 8mbps downstairs. I was thinking of getting an Airport Express and putting it downstairs in line of sight of the staircase. Will the Express be able to boost the speeds downstairs to anything worthwhile? Thanks.