Linux Firewalling - Further Adventures with DSL

[William Cooper <BillCooper@mailandnews.com>]

Hello all,
   one of the company's suppliers got wind that we where going to host 
web services on a DSL connection. They are now trying to convince 
management (and me) that Linux as a company firewall is not acceptable, 
that we need a CISCO PIX or equivilant to protect the company's network.
   Is this true? I have been using Debian as a firewall for a while now 
with no complaints, but on a dial-up. Putting the machine with a fixed 
IP for possible attacks is a different matter. Does anyone have 
information about the situability of Linux as a firewall over long 
periods? A comparison of Linux versus a hardware or proprietry 
software/hardware solution?
   Any other advice?

Thanks
Bill