Things to keep in mind while listbuilding?

Hi!

A friend and I have bought our starter armies (PanO and JSA, the starter pack and then Army Packs. I also got some PanO Booster packs Alpah and Beta, though I think the Alpha I got is pretty old, with the Croc Man and the Akalis).

We're planning on doing some games at 100-150 points, listbuilding with what we have here. Any tips and tricks on things that could be useful to have???