I have two separate internet lines with a gateway on each one. I have all the users pc's pointing to one and all the servers pointing to the other. The user gateway has all sorts of firewall, spam block, virus block (Untangle in short) on it. The server line has NAT and firewall. Is the internet bandwidth for the servers truly isolated? I know the LAN traffic is all mashed together. Of course if only 1 internet line failed I could switch over to the other one (not very efficiently though). What are the good things about this setup. Does anyone have any suggestions on changes that would make this network faster and/or more secure?