the other 0.1% (Score 1)

luckily, some cable companies realize that their pipes can carry more than just residential traffic.

one cISP i'm particularly fond of (@Home) has a subsidiary (@Work) which packages cable Internet (among other products) over the same infrastructure, with different contractual obligations. i can't say whether reselling bandwidth is permitted, though.

off-subject, one of the local burrito shops who wanted cable-TV has a 10-year-old response from a local cable company framed on the wall. it explained that because it was not a residence, the shop would have to pay the full equipment cost -- over $50,000 -- to essentially bring it across the street.

so be sure your POP is already wired for cable, and that the cISP offers a commercial product.