[blinkwatt]

Tranny change: take off the under cover and braces, drain it, fill it untill 11mm below fill plug line (correct?)

Take the cover off,remove braces,remove plug,drain it,put plug back on,remove fill plug and fill,put fill plug back one(TRUST ME IT'S EASIER SAID THEN DONE)

Polyrib belt: remove shrouds, loosen tensioning pulley, slip belt off, reinstall, tighten pulley (correct?)

Make sure you install the belt in the correct order on the pulleys.

Your pretty much on the right track,let us know how it goes. I recently finished my 60k tune-up myself,so I've 'been there and done that' and can tell you it feels AWESOME getting to know your car better!