I need to connect two computers on separate networks over a VPN. Both routers the computers are behind block any incoming connections. Hamachi is able to connect the computers but it uses a slow speed relay connection. Since I already have a server, rather than paying for a high speed relay with hamachi, is there some other VPN software that I can use that is relatively easy to setup or at least has good instructions?
Edit: Both computers are running Windows Vista (one is 32 bit, the other 64 bit)