There are games for PFS here in Las Vegas:
That page also includes the contact information for the Las Vegas Venture-Captain, Chris Clay.
The next Vegas Game Day is October 19 and you can register for a seat here:
You can also check for PFS online games here:
The games are listed at the top. One of the items, "Marty's Online PFS Games", is run by Marty Weil, a Las Vegas resident.
I can be contacted at:
Snowfrost571 AT yahoo DOT com
Vegas Game Day Organizer