CrossLoop - Simple Secure Screen Sharing

CrossLoop is a FREE secure screen sharing utility designed for people of all technical skill levels. CrossLoop extends the boundaries of VNC’s traditional screen sharing by enabling non-technical users to get connected from anywhere on the Internet in seconds without changing any firewall or router settings. It only takes a few minutes to setup and no signup is required.
http://www.crossloop.com/index.html

System Memory check utility

http://www.cpuid.com/cpuz.php - run this free utility, click on the memory and SPD tab and you'll find everything you need to know about your system memory.