I'm going to upgrade to wireless N. I have some questions :D?

Right now, I have very slow DSL (my maximum wireless download speed is about 160 kilobytes a second....). We have a time warner high speed modem, but right now it has no use since my wireless 2Wire router has a built in modem. If I purchase a wireless N router, would I connect my time warner cable modem to the wireless N router using an ethernet cable? Or....what?