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.