reply to Rookie
Re: 2Wire Modem Low Signal Strength - Can I have 2nd Router?? not really... it's a somewhat delicate operation, I have a feeling you're doing to lock yourself out and be stuck calling them, which will get you worse than when you started
connect your linksys WAN port to one of your 2wire's ports and see if that gets you anywhere in terms of having both routers working.
Thats a good starting point. If that doesn't work, Reset your linksys to defaults (Pen reset - 30 seconds)