Available for $310 from provantage.
I use the cardbus realport combo card with an I7000 and love it.
Installation was fast and easy, just disabled the internal modem in
bios.
Performance is good on both network and modem.
On the other hand, performance was just as good with the internal
modem. However, i do some net quaking, so i prefer the hardware modem
over the winmodem. When on the road a extremely battery dependent, it
may be best to pop the xircom out and use the internal modem.