I'm not sure what has taken me so long, but I'm becoming more and more of a convert to Valve's Steam game distribution system. It's quick. It distributes both Indy and mainstream games. I'm kinda loving it.
The most recent game I've played on Steam is Monaco: What's Yours Is Mine. If you enjoy films like Oceans 11 and want to play a game with simple graphics, fantastic multiplayer gameplay and great music, this is a game for you.
You can unlock 8 characters who perform various roles in your crime gang. The Locksmith (blue) picks locks, opens cash registers, locked doors and safes faster than anyone else on the team. The Pickpocket (yellow) has a pet monkey which enables him to gather coins at a distance. His monkey doesn't trigger alarms and he can hide in bushes longer than anyone else on the team. The Cleaner (pink) can knock out passive guards and heal faster than anyone else on the team. The Lookout (red) can see all NPCs on the board without requiring line of sight and can enter windows/vents/stairs faster than anyone else on the team. The Mole (violet) can dig through walls, go through secret passages fast and break jewel cases faster than anyone else on the team. The Gentleman (teal) wears a permanent disguise and can get into vehicles faster than anyone else on the team. The Hacker (green) disables security and can hack computers faster than anyone else on the team. Lastly, we have The Redhead (orange) who can attract and distract a single NPC and convince it to open doors and not harm teammates. She can also revive teammates faster than anyone else on the team.
As you can see, it's a fun list of characters to play, and you can play in teams of 4 players. You work through missions, robbing banks, busting criminals out of jail, and other fun acts of ne'er do well.
If I have any criticism of the game it's that the graphics are rudimentary and learning what to interact with and where the doors are can be difficult at times. Fortunately, there is a single-player mode which allows you to play the game at your own pace and learn where things are before joining a group for a break-neck run through a mission.
This game is currently on sale on Steam, as July is the month of game sales there. I've seen it for $10 instead of the usual $15. There is a bundle (4 licenses) option as well.