Airport Extreme Base Station & Linksys WRT54GL

I have a few MacBook Pro's and some older MacBooks all using the Linksys at the slower speed (the Pro's).

I brought home from the office the AirPort Extreme Base Station to use the faster speed on the pro's, since the distance on the extreme is limited, I want to hook both the linksys & Extreme up so you can travel through the house and when you lose the Extreme's n speed you can get the slower linksys. Is this possible?