Routers

I just obtained a wireless router, and I am wondering if I hook it up, and other people boot off my wireless, will it affect my com speed, or will it affect my xbox 360 gameplay online???

Yes.

Here’s a question for techies: settle an argument.
If you put 2 routers on 1 DSL, any cross-talk? Change one’s LAN to 192.168.2.xxx?
I say shouldn’t have to, routers have different WAN IPs.

Thank you Herbie,