Interesting. Thanks. I might have to give steam or greenman a go. Sounds like a decent way to get at new games.
After you install steam, you add games by putting in the product key for them.
You buy the product key from greenman gaming (it's emailed to you), then enter it in the Steam software which will then download your game from Steam.
I'm fairly new to this too. Until recently I've avoided anything that required online activation.
I finally gave it a try when someone on here posted a cool shooter called Sine Mora for under $3.
With a "patch", I managed to get it working on my cab, which doesn't have any networking.
I've bought a few driving games since, but haven't tried to add those to my cab.
They are a lot easier to work with than the nightmare that is Games For Windows Live.
I think I'm going to break down and make my next driving cab internet connected anyway.