I just finished some research on 3Com's product line against Cisco and Linksys. From Encryption Algorythms, DMZ, VPN, packet shaping, coS/Qos 802.1d etc. I think that 3com has hit it on the head with the comparison charts with the Superstack 3 Firewall / Cisco Catylist, D-Link and LinkSys. look at
www.3com.com Depending on what level of service and security you are seeking, I understand what your looking for, however, like me, I had to ask the individual questions to each vendor to get past the sales hype to finally get an answer that suited me. I did all this to separate my customers needs with the proper solution. I sure hope any of this has helped. If you have further questions, feel free to email me. Thx. Todd Kimbrell