Scenario: I've moved into a friend's house, and unfortunately the house's design makes it so that an ethernet cable cannot be effectively hidden without drilling through the walls. In lieu of this, I've set up my old WRT54GL with DD-WRT to act as a repeater, located next to my desktop, for the main AT&T modem/router. The issue is the vast drop in speed: I'm about 40 feet away and one floor beneath the main router, so I only get 200 to 300 KB/s of our terrible 500 KB connection (I plan on upgrading our speed at some point soon).
Question: Would getting an N router and using it as a bridge for the main router, and possibly replacing the GL with an N router, help my speeds at all? Or is this something that can really only be fixed with a better ISP speed?