My stats are:
CPU ( 4) Intel(R) Core(TM)2 Quad CPU Q6600 @ 2.40GHz 2400MHz Refresh
Uptime 146 days, 5:45
Load Avg 0.03 0.03 0.00 Graphics
Memory 2050568 kB
Less than 3% CPU usually, 200Megs ram used on average, MAX 56k (57,000) concurrent connections, with peaks of 110Mb/s download 38Mb/s upload, on an Interface Masters N2265, and a basic on-board NIC for management.
Works out very very well. 61 Firewall rules, 65 QoS rules.