Hi Hacksaw,
Welcome to the Dark Side!
A 12ga. repeating shotgun is a good all-around choice for a first gun (but you will never stop at just one), I set-up my do-it-all shotgun on the Remington 870 Pump action and use it often.
If you get into Big Game hunting you will want a centrefire rifle, and everyone needs a .22 rimfire also.
I would love to discuss gun selection at length with you but I am taking the kids (30) camping for the weekend and am scrambling to pack. I will give you LOTS of input (as I am sure many ETS's Forum members will), on Sunday night.
Later Brother,
Mike