Hello, I'm looking for some advice. I'm looking to purchase a hardware firewall that offers the following: -Support for dual subnets (we have two separate DSL lines, one for internet and one for pbx VOIP system) -VPN endpoint client -Hardware firewall I found a sonicwall TZ210 which seems like it fits the bill but I'm not 100% sure. Any recommendations would be great. Were trying not to spend more than $600. Thank you for any help you can offer.