Re: video editing?
Adobe Premier is one of the top ones, but expensive, if you were to buy. Windows Movie Maker not too bad, but doesn't give you many options, and shit for importing and exportings different file types. (Overall, not too impressed with Movie Maker)
What did impress me was Pinnacle Studio 9! Use nothing else but now. Supports many formats, got good tech support. Supports things such as DVD exporting, DVD Authroing, Surround Sound and so on. Retails at $250. It surprisingly pakced with features and easy to use.