Personally, I like dealing with individual addons rather than a total UI makeover.
As far as the video goes, my comments are:
Your accent is a bit heavy, making it not the easiest video to understand.
I prefer not to copy into folders other than \interface\addons\ .
I would script your dialog a bit more carefully, and leave out the part about your hating blood elves and paladins, that your dk is sexy looking, and the use of "F'd up" to describe the initial screen layout.
Wahu - Disc Priest
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