Having issues getting network to work

I've got a 2wire 2701HG-B wirelessG DSL modem, a motorola cable modem, a linksys BEFSR41 V3 wired router, and a linksys BEFW11S4 wireless router. Right now I've got it set up modem-BEFSR41 V3-BEFW11S4(DHCP disabled). I'm trying to bridge the 2wire to the BEFW11S4 so that I can hook up the 2wire to my xbox 360, and be able to hook up wirelessly without having to spend $100 on the actuall 360 wireless adapter. can this be done, and if so what should I do to revamp my system? Also, the BEFW11S4 uses wep and mac address restriction.