Hamachi will allow you to establish secure direct connections to PC's that are not accessible otherwise due to the restrictions in network setup.
LanTopolog is an application that provides physical network topology discovery, visualization and monitoring.
ChrisPC DNS Switch
NetSetMan is a network settings manager which can easily switch between 6 different, visually structured profiles. Pre-prescribing network settings, you no longer have to write them again when you change your network connection (for example, when you connect your home computer at work, in cafes, or frequent switching between providers).
LanHelper can scan network at high speed and it can even detect writable or read-only shared folders with the powerful and special engine. Boot (wake up) or shut down or lock your PCs.
WebcamMax - program for the imposition of any effects to webcam video. During a video chat with friends can distort the image, animation, add or change background.
ProgDVB - the universal and very power software for watching digital TV and listening to radio channels. Support for various types of data sources: Internet TV and Radio.
BurnAware Free is a free CD, DVD, Blu-ray Disc burning software. It is ideal for users with basic disc burning needs as backup, creating data, audio, MP3 music, DVD-Video discs.
Nero 9 is the next generation of the world’s most trusted integrated digital media and home entertainment software suite. It features new cutting-edge functionality that makes enjoying digital media content simple.
KMPlayer is an excellent video and audio player which can play a large amount of formats such as VCD, DVD, AVI, MPEG-1/2/4, WMV, RealMedia, and QuickTime among others.