I tried Micah's suggestion and really fumbled with the turning of both toons at the same time. In order for that to work I had to remove the /follow from each of the combat macros (i.e. Frostbolt) which also meant I had to dedicate a key to follow and make sure to remember to push that regularly.

I haven't yet decided if having it how it was originally is better or keep the new turn keys and just practice more.

As for targeting, setting up all my damage spells with /cast [target=focustarget] <spell> is working beautifully. I never have to worry about specific targeting keys for the secondary toons because they always cast at whatever i'm targeting with my main (who is setup to be the focus of each of the alts).

I'm still swimming in my complete newbishness of multi-boxing and writing macros, but i'm having a blast at it. So many new and exiting things to try now

Thx for the info on your setup Trig. Seeing how others have thier setups working will really help me tweak and fine tune my own.