I have 2 routers, Buffalo WHR-HP-54 and the Linksys WRT-54GS. They both have dd-wrt on them. The buffalo is connected to the office computer and the modem there. The linksys isn't being used right now. I have 2 other PCs that are connecting to the buffalo router by wireless g, so I want to know. What should I do/what setup should I use with the extra linksys router to give the 2 other PCs (which are upstairs) better signal and speed?