I've got a client who has just acquired a new T1 line from the local tel co. What is the cheapest way to get that T1 signal converted and connected to ethernet? We've already got a simple Linksys Cable/DSL router in place to handle NAT, Firewall, DHCP, etc. Do I need to buy a new router for this guy (with a T1 WIC DSU/CSU), or is there another device I just don't know about. If I do need to buy a router with the T1 WIC, what is the best way to go (price is a big concern)? Thanks for your help.