Cradlepoint has a series of routers that might work for your needs. These include CTR500 EVDO/HSPA Router, the MBR1000 EVDO Router and the CTR350 EVDO Router. Of these three, the MBR1000 EVDO Router is the most noteworthy. At approximately $250 from online retailers, it's mid-range as far as pricing, but comes jam-packed with great specs, including the following: two USB ports, one ExpressCard/34 slot, five ethernet ports, three fixed, non-replaceable WiFi MiMo antennas, and ten LEDs. Plus, it has additional features to help encrypt your data and see your signal strength. It also uses WiFi N.
This model can support both conventional WAN input and wireless. It also allows the admistrator to decide which device should have priority in case there is a failure in connectivity. It has a transfer rate of 10 MB per second, which isn't as fast as some of the other models mentioned, but still fairly decent.
It can handle Sprint and Verizon ExpressCards and USB EVDO modems, plus other devices including many phones and PDAs. The one major downfall to this model is that is does not come with a PCMCIA slot. This device would work well for people who travel often and business owners.