We have the multi-user option and were never offered a router on a cable based broadband option. This could have changed, but is not mentioned here:
http://business.ntl.com/internet_pro...d_packages.php
The main difference I think is the amount of support you will get on the multiuser option, plus you may get more "fixed" IPs if you ask.
You will see from the above link that they are still trying to offer 750k/1.5 MBit options at prices that look less than competitive even compared to BT's business offerings.
They were rumoured to upgrade business users to the new domestic speeds, but nobody will confirm if and when this will happen. If it doesn't happen soon I can see we may be swapping to ADSL here.
APS