The least expensive method would be to connect both modems to a dual WAN router like the Cisco RV042
. You can see more information about that router here
. Since that router doesn't have wireless capability (I don't know of any inexpensive ones that do), you could then add a wireless access point
, or better yet, just get another wireless router
and disable the router functionality to use it as an access point. What is interesting is that due to popularity and marketing you can purchase a full blown router/access point for about the same cost as an access point alone. Scott.