Here are the things that I have decided to upgrade to start with!
The Hydor Water Circulator fits on to the existing pump, giving the tank more circulation. Still might add another power head but going to see how this works out for me first.
Added a Coralife 50/50 dual bulb, and a Coralife Actinic dual bulb. I went with this combo because I like the lighting a little more blue. Looks great and just what I was going for.
Went with the Maxi Jet 900 return pump as per a bunch of suggestions with this type of system, creating a lot more flow and works magic with the Hydor Circulator.
As for the Biocube skimmer I have heard very mixed reviews for this type of skimmer but I am goint to see how it works out to start with and go from there.