Wizards has a new product released this month (September 2012):
Booster Battle Packs (MSRP $9.99)
###Booster Battle Packs (MSRP $9.99) EachEach Booster Battle Pack contains:
- Two 20-card semi-randomized decks
- Two 15-card Magic 2012 Core Set booster packs
- Magic "learn to play" guide
- Rules insert
The ad copy says:
Each pack contains a pair of semi-random decks, each with land appropriate for the deck's two colors. To play Booster Battle Packs, each player selects a deck, opens a booster chooses up to five cards from it, and shuffles them into their deck, then the spell-slinging begins. Since each pack will have four different colors, the two decks won't overlap. And when you add the booster to the equation, Booster Battle Packs create nearly limitless limited play options.
So, that's a pretty affordable way to get your feet wet. Don't drown.