I have Nod32 2.7 and just found out about ESS. My license just ran out so I'm not sure whether to get Nod32 3.0 or ESS. Does ESS have the same exact AV as the Nod32 3.0 AV? Or is it somehow a "lesser" version? I know ESS has firewall among other things, but my main concern is whether or not ESS has the full complete Nod32 3.0 in it. And how much does it cost to upgrade from 2.7 to ESS?