I'm considering installing ISA onto my home network for the sake of learning it and managing my network at the same time. I need to know if there is anything I will need to get rid of, or any drastic changes I'll need to make to my existing setup before installing this server? My existing setup consists of the following: ADSL w/Linksys Router and 12 port hub TZO Client w/Dynamic DNS service 1 w2k DC hosting AD, dhcp, dns, wins 1 w2k exchange server - published and accepting email from internet 1 w2k web server running apache instead of IIS - published with under construction page 1 Linux server - not yet published My concern is whether I'll need to make any major modifications to any of this before I get started. I've read all of the articles listed on the ISA.org site that relate to installing and configuring ISA and none mention anything to this effect, so I'm seeking a hands on - real worl opinion from the list. Any response is appreciated