I am trying to add some redundancy to a small windows network (15-20) pc's. Currently only one Windows 2003 domain controller with (DHCP, DNS, WINS etc.). If the only DC halts since its the gateway and DNS server access to the Internet (which is critical) is not possible. Trying to find another cheap solution so the business always has access to the internet (hopefully without adding another server). Any other ways to achieve this? Thanks!