I don't know how much it costs but my cox internet is 3.3mbps and .5mbps upload. I think I get cox internet and phone bundled for about $50. It's the cheapest internet and the slowest. You are supposed to get 15mbps anywhere in phoenix, but they just say that. It depends on how old your lines are in your area.
With cox you share your speeds with everyone on your line. But, on the brighter side cox allows you to connect to their Usenet servers for free. All you have to do is find a binary news reader/grabber to download files. Which you can use Grabit.
*edit
I checked and without a telephone my bill is 40 a month