Newbie, any advice greatly recieved..

I am new to fishing, and I have sought the advice of the local tackle shop
for some gear! Now I have a 12' beachcaster, reel, various rigs, bombs and
breakaways.

I am off to Anglesey next weekend, staying near Trearddur Bay and would
appreciate greatfully any one that can help point me in the direction that
will not dissapoint me on my first go. I understand that I can't be
guaranteed a fish first time out, but I would like to know:
What fish am I likely to get?
What rigs/weights should I be using?
What bait should I be using?
Suggestioon putting the bait on the rig!

Many thanks in advance,

Mark S