Work have (very nicely I think) provided by with a Cisco 837 ADSL Router. [Link to Cisco] It has been a VERY long time since I used Cisco kit, although it seems I can (just about) remember a few IOS CLI commands. Not many mind. Certainly not enough to get the Port Mapping working though ... *grumble*. I suppose I'll have to ask the work Cisco admin :) What amazes me is how configurable these peices of kit are - certainly a lot more powerful that the general run of the mill router, however, I expect that is why Cisco charge a lot more for them...