by Mike1977
Wizard can pull off Arcane/Air really well, probably best for you considering your working off the pre-constructed spellbook.If you want to go flavor of the month, Arcane/Earth is a blast, but you do need the expansion.
If you have no plans of making a Warlock spellbook, Arcane/Fire is quite interesting.
As for a specific opening... Just keep in mind you don't have to plan your first 4-5 turns to a T. But you should at the very least have some notion of what you want to do for your first 2-3 turns. If you want to rush, rush... If you want to build up a bit, then build up. Do what suits your play style the best.