They don't actually sell one but they advertise a deal with Actiontec for a wireless router +
USB wireless adaptor card. Its £100 and its pretty naff.
NTL don't actually offer any support on it.
www.ntlworld.com/help/services/wireless
You are much better off going to
www.broadbandbuyer.co.uk and getting something much better and cheaper.
The Linksys gear is good.