Guys need your advice please :-)

My apologies for not replying to everyone sooner I've been in Boston seeing some friends for the last few weeks, was great fun! I think you're advice has been awesome and I've decided to follow something I'm passionate about and start an SEO blog while continuing my 9-5. I know it will take a long time to get any decent amount of traffic because its such a saturated market but I've read many seo blogs and realized although its a saturated market there aren't that many really technical SEO blogs that actually give real case studies and experiments with every post they do. Its all "there is a school of thought" and "some people say" which is just bashing out crap content for traffic in my humble opinion. I'm going to post technique, test, results and hopefully that will set me apart a little from the rest. Plus even if it all fails and goes no where at least I've done something I enjoy rather than writing crap articles about insurance or some other lame niche!