Well, at least the one at my house is working now.
Our new house is a mile past the cable and too remote for DSL so I went with Verizon's Broadbandaccess. I got the AirPrime 5740 modem. The card works great with Linux once it's activated with the Windows software. Cost is a bit high at $80/mo but since it's the only option I can't complain too much.
I'll be posting a short howto on the differences between the 5740 and 5220 cards and how to setup a dedicated laptop as a router in the near future.