If it's any help, I've just bought a Linksys wireless Broadband NAT Router/hub and wireless PCMCIA card from ebuyer (yes, I know... but I've yet to have any problems with them):
£11.74 - PCMCIA wireless card (quickfind - 52909)
£49.30 - wireless router (quickfind - 51436)
It's all 802.11b kit which to be honest is fine for me, even at it's slowest it's faster than my broadband connection so no loss of service there and because it's also a hardwired hub, if I do have any large transfers, I can just hardwire the network connection to up the speed for a while.
Prices do seem to be good - especially the PCMCIA card. I set the hardware up in no time at all and I'm using it now.
Thought the ebuyer prices might sway you when compared to NTL/Simply.
Hope this helps,
Kind regards,
Cyrill666