XP Pro - overlapping wireless problem

I have a laptop with a wireless card & a wireless router which worked fine until just recently. Suddenly I started having trouble connecting and figured out that my neighbor accross the street just put in a wireless router which sits directly in front of his front window.

I've tried deleting his network name but every so often it finds it again and tries to access it (which, incidentally, it does quite easily if I put his routers IP in as a gateway )

I've even tried leaving his network name and just lowering the "preference" below mine - no dice. The strange thing is that mine can be 4 ft from my router and getting an "excellent" signal and it still tries to grab hold of the neighbors which is "good" or less.

Any suggestions (...aside from just cancelling my DSL)?

You can change channels on a WAP to deal with this problem (its in the settings). Talk to you neighbor and make sure you are different. Also, enable security on your WAP so your neighbors can't connect to you and steal your bandwidth.