Hey there,
I would run from the 7206+NPE-G1 in this capacity. We have not had luck actually getting a gig worth of traffic flowing through them. Great small site router, but not much on the throughput side at all.
James
We are currently pushing 950+ Mbps through several 7301s. (The 7301 is essentially an NPE-G1 in a box by itself.)
This traffic is heavily outbound. Several NAPs have the router, some with 100+ peers. We do not have a lot of ACLs or other CPU-eating stuff in the config.