be careful of the word "bridging" a wireless bridge is where you have two wired networks and wish to "bridge" them together to share resources, basically creating one big network.
however what you describe is just another wireless acces point added to your existing network allowing you to "boost my signal even further".
see
http://www.wirelessforums.org/how-to...her-37891.html "rob" even drew a nice picture for you, note that he didn't mention the WAN port, this is because you will not use it on your new router.
hope this helps,
g.