Mafia Wars: Las Vegas Collections take you into the Nevada desert

New collections have appeared in Mafia Wars today, but you'll have to head over to Sin City to find them. These four Las Vegas Collections are part of Zynga's gradual update to the city and provide impressive stat boosts like permanently increased health, energy and increased loot drop chances.

Check out what you'll need to find, and more importantly, what you'll win after the break.
Mafia Wars Las Vegas Collections list
Log into the game and if you don't already see the Las Vegas Collections promotional banner, just check your profile and find them under the "Collections and Vault" tab. Here's each of the four collections and what you'll need to find while you're doing jobs in Vegas:

The Cactus Collection (+30 Health):

    Christmas Cactus
    Silver Cholla
    Cottontop Cactus
    Hedgehog Cactus
    Prickly Pear Cactus
    Barrell Cactus
    Saguaro


Mojave Animals Collection (+10 Energy and +10 Stamina):

    Jackrabbit
    Coyote
    Roadrunner
    Rattlesnake
    Kit Fox
    Golden Eagle
    Mountain Lion


Poker Hands Collection (+20 Attack and +20 Defense):

    Pair
    Two Pair
    Three of a Kind
    Full House
    Four of Kind
    Straight Flush
    Joker


Matchbooks Collection (Ten percent drop rate increase while in Vegas):

    Loot Isle Casino
    Camelot Hotel
    Giza Las Vegas
    Florentine Resort
    Soft Rock Casino
    Jersey, Jersey
    Planet Bollywood


Head on back over to Las Vegas for a chance at improving your character even further, but don't forget to bring back the Rat Pack while you're at it.