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a great series of posts - to add to them here's some info from the master Matt Cutts.
What are some effective techniques for building links? - http://www.youtube.com/watch?v=MkLFlaWxgJA
http://www.google.com/buzz/109412257237874861202/9TXnsGNTaoa/Today-I-recorded-video-answers-to-webmasters
Finally - a great one hour video of a site review - http://code.google.com/events/io/2010/sessions/seo-site-review-from-experts.html
Top tips - good luck with a great site!