This client connects very well and works intuitively with both Windows and Mac computers. It finds them automatically and connections are quick and solid. It uses the built-in Apple Screen Sharing or Windows Terminal Services hosts, so there is no additional hosting software to install. Its easily the best VNC/RDP client Ive used.
This client does assume the host is on the same network. If you want to host across the Internet, you need to be familiar with port forwarding, firewalls, and static or dynamic DNS. If youre not comfortable with all that, you may want to look at another product built for that purpose.
Gator_Growl about Remotix VNC, RDP & NEAR