Just a quick bit of info about the packs: Boosters 1 thru 4 come with monsters, cards, and dice. However, boosters 5 thru 7 come without dice. If you're new to the game and don't have dice, you'll want to get boosters that come with dice.
Also, all of the monsters available in the boosters aren't listed here yet. Why not? Well, there are certain monsters that are Secret Rares. That means that it doesn't list them as a part of the set, and that I have no idea what they are until I see one. The only Secret Rare that I have seen so far is the God of Obelisk.
Finally, sometimes your monster will be slightly clear and your card will be neat and shiny looking. This means you have a Parallel version of the monster. Parallels are rarer, and probably worth more(if you care about that sort of thing), but they still play like the same monster. My hypothesis is that Parallels come in Boosters 5, 6, and 7.