Windows Remote Access Tools

[Sagiko <sagiko () gmail com>]

Hi, 
I am currently evaluating a number of windows remote access tools(with
GUI) for a project. I would like to get feedback on the following 4
tools especially on the security, GUI performance and cost efficiency.

1) VNC (the previous vnc security post initiated by steve was very informative)
2) Windows Terminal Services
3) PCAnyware
4) SSH Tectia with X server 

Any other opinions, feedback on other tools are all welcome. Thank you.

regards,
Rick Zhong