I want to build a router that has 2 x 500mb/s radio ISP facing, 2 x 500mb/s radio's facing another site, plus a 1gb/s link to the LAN. I plan to plug everything into a switch so I can have redundant routers. So my question is should I go with 5 x 1GB NIC's or 2x10GB NIC's on the motherboard. Assume NIC's will be Intel or IBM. Going 10GB pushes the switch price ten-times, so I'd like to avoid that if possible. I'm planning to get a 4 core Xeon @3.4GHz and it would be nice to know if this is a moot point or not. Thanks -- lee