Exchange server & Web Security for mid size company.... Need advise.

[phunked up! <phunkodelic () gmail com>]

Am getting ready to run install a complete email system (Exchange
server) for approximatley 175 users.  For antivirus we are currently
running Trend company wide and it has served us well.  We currently
have no spyware solution to filter web traffic.  My plan is to
purchase Norton 8200 Antivirus & Antispam firewall (applicance) and to
put Trend Scanmail for exchange  on our server.  Figured that that
might be overkill int the antivrus department and here is why:

Clients-Trend Micro
Exchange Server - Scan Mail for Exchange
Gateway Solution - Norton 8200 Spam-Virus Firewall.

What I was thinking of doing was just puttting regular antivirus
client on Exchange and using the saved money to purchase an
anitspyware appliance from Barracuda Networks.  I would think that two
layers of virus protection (gateway, client) would be fine and three
layers (gatway, email server, client) may be a bit much for a
small-medium environment.  In my last exchange deployment several
years ago I had it set up with regular cleint on exchange server and a
gatway solution.  Of course years ago things were a bit different.

Any opinions would be much apprecaited.

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