I tend to build Taric like I would a tank: Philo, HoG, Mercs early on. I usually pick up Soulstealer to passively raise my AP to acceptable levels. Then, it pretty much varies. I don't actually know what a good Taric build is, but this works well enough for me.
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I like how each new topic you make reveals such varied facets of your idiocy. - foolmo
Now this is entertainment!