Best mocktails/nonalcoholic?

Where in town would you recommend for the best non-alcoholic cocktails?

I don't mean just syrupy/sugar drinks or sprite with fruit in it.

I really like the Patio-cooler at Sidecar that uses ginger and mint and is strongly reminiscent of a mojito.

Where else have you found something good that actually makes you feel it can stand up with regular alcoholic cocktails as a legit mixed drink while still being n/a?