First of all, I want to extend a welcome to Marvin and Nick, from the Beach Crabs. Welcome aboard, guys!
Nick, to address your weighting question. Everyones body composition is different, and there is no magic number. A weight check is the best way to decide the amount. I suggest since you are new to beach diving, use the tanks you have been diving, and are used to using, at least for a couple dives. There are a few things going on on your first dives, and you need to concentrate on the entry, descent, and general bouyancy, as well as the ascent. When you change your tank from one you are used to diving, it will take some getting used to. Save the change for when you are comfortable with the dive.
I do carry extra weight to the dives, and will assist you.
I am looking forward to seeing everyone tomorrow.
Rick