First you need your footage....Video Capture Cards...DVD Ripping....Those are 2 ways you can get your footage....DON'T USE DOWNLOADED FOOTAGE!
Second you need a program to be able to put everything together.....I bet you 80% + use Adobe Premiere in these forums...Hell...I do....Once you finish just make sure you are using a good codec to export...
Third...Encode to Mpeg...Download Tsunami MPEG Encoder...It's free....And in my mind the best encoder out next to Panasonic Mpeg Encoder....
Just to tell you...This is a short summary....I can't take the time to write a long review on how to get into this.....if you want later I will have tutorials on my website about how to get into Video editing....and to teach little tricks on how to untilize Adobe Photoshop....into Premiere....Along with After Effects.....Gotta get started on those tutorials
http://www.smoothestudios.com