Well if you have the Meg's consumer 3 step kit, I wont suggest you going out and buying any expensive waxes like all the others will

Basically, if I were in your shoes, I would do the following:
-Wash entire truck with dawn to remove old wax & dry when done
-Use a clay bar (clay magic is a good brand that can be found at your local autozone). It is very simple to use and removes all the overspray/contamination off your paint! Buy a spray bottle of your favorite Quick Detailer (I like meguiars consumer version)
-Apply the three step product according to directions. If doing by hand, i would suggest picking up 3 or more foam applicators made by Eagle one (also could be found at autozone - the have a little "foam handle" on them. Buff out with a microfiber towel (turtle wax has a decent product also sold at autozone), otherwise buy some 100% cotton towels at the local bed bath and beyond or at a fieldcrest store. Make sure they are made in the USA!
-For tire care, buy a stiff bristled clothes brush and some simple green to clean them. Meguairs endurance tire gel works good, just make sure you buff it well, otherwise it will attract dust like no other.
-For minor touch ups and to remove finger prints, purchase some Meguairs Quick Detailer or mothers Showtime.. works good!
-Interior care is rather easy, just vacuum it regularly. If there are stains, turtle wax makes a good product called Power Out Professional I do believe. Apply 303 aerospace protectant (availible at local marine supply usually.) to plastic, leather, and vinyl surfaces and buff out well.
-Glass care is easy as well... Many companies make a good product, but my favorite is Stoner's Invisible glass.... can be found at autozone!
Other than that, keep reading this site and you will learn alot about proper auto care. Since you have a black vehicle, swirls will be a problem, so take car when washing and drying, making sure ALL dirt is off.
Good luck!