Ok ... I had previously asked about firewall hardware and did get some
good feedback.  

Now ... part two.  I need some recommendations about Linux based
software for scanning outgoing emails, http activity, etc. ... this
would be behind the firewall and before everything jumps into a switch.
SO ... all traffic would go through this.

I am envisioning a simple box ... with a stripped down version of linux
running ... where by the log files, etc. could ideally be accessed via a
web browser.

Anyone tried this or done it before?  

Thanks in advance.

Randy