Forget videos, get busy getting good backlinks to your website with the keywords that you want to rank for.
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Go to seomoz.com and look up their 'whiteboard friday' videos (you can also find them on youtube) For a real beginner Google's own tutorial slide show are a good place to start http://services.google.com/breeze/webmasters/googleforwebmasters/
try to think of keywords you want to be found on. then build links with those keywords as an anchor text.
and the top spot is not always the best place to be. 3rd or 4th is just a good a spot as well, as the spot usually gets a quick look, especially if your buying something as you want to check out the prices on the next few listing results.