Help me build my desktop from scratch?

I want a machine that i can burn dvds super fast. I also want it to greatly speed up the time it takes to re-encode the format when burning movies. help me pick out the items that i will need to do this. i will probably get into some video editing or movie making like home made videos and what not. any help you can give will be great. Oh i plan on having 1T of hard disk space. im not sure if i will get a single terribit drive or 4 drives. id need a board that will support it as well as a minimum of 4Gs of ram.