Free LIME WIRE
File sharing made easy . . . . 
LIME WIRE is the fastest and most popular of the best know peer-to-peer file-sharing applications. It has spawned many offshoots and imitators. Because LIME WIRE is open source – and supported by a multitude of developers – there is no need to look elsewhere: download free LIME WIRE – the most feature packed, secure and easy to use file sharing software.
LIME WIRE 
LIME WIRE is file sharing software running on the open source Gnutella Network. LIME WIRE allows you to share any file (audio, video, software) such as mp3s, avis, jpgs, tiffs, etc. Because LIME WIRE is written in Java it will run on all computer platforms. Also, you can publish your original content online without setting up a website.
LIME WIRE has the following great features:
- Easy to use. Install> run> search: that’s it
- You can search by artist, genre, title, or any other information
- Fast downloads
- Works behind firewalls
- Integrated chat
- Inbuilt BitTorrent support
- No spyware or adware
* Click Here for Limewire’s advice on using P2P software safely 
It pays to learn a little more about LIME WIRE in order to get the best use out of it. Wikipedia has an excellent article about the evolution of LIME WIRE, the controversial legal issues surrounding it, and the forking of various versions and offshoots.
LIME WIRE Forum 
A good way to get better acquainted with the possibilities and pitfalls of using LIME WIRE is to visit the LIME WIRE Forum
Topics are discussed in many forum rooms:
- Getting Started
- Technical Support
- Tips and Tricks
- Feature Requests
- Programming LIME WIRE
- Skinning LIME WIRE
Bittorrent 
Bittorrent is another free P2P software application. It is especially good for movies and it has attracted a loyal following among those interested in sharing movies and television programs. The offical BitTorrent P2P client will tend to monopolize a network connection and not allow surfing the Internet while files are being downloaded or uploaded.
A freely-available alternative BitTorrent client overcomes this limitation.
With BitTorrent, those who get your file tap into their upload capacity to give the file to others at the same time. Those that provide the most to others get the best treatment in return. This way of networking is ideal for the amounts of data that movies require.