I'd recommend, based upon what info you gave the Juniper SSG20.
Basics:
Site-to-Site IPSec VPN
Application Firewall with NAT
DoS/DDos Protection
Intrusion Prevention System (IPS)
RIP, BGP and OSPF Routing
URL Filtering
Anti-Virus, Ant-Phishing, and Anti-Spam filtering
Key Logger detection
WAN Backup
5 10/100 Ports
Two WAN ports available: T-1
Although, there are many routers out there that would be a good fit for you. You'll want to pick one that will support your long term growth.
Qwest sells CPE (Cisco, Adtran, Juniper, F5, and many more) so if you, or anyone else needs a quote, let me know!
Katie
katherine.delmoral@qwest.com