GTA IV fans... who don't own any of the downloadable content... and have a Gold Xbox Live membership subscription... will be able to make the most of this deal. By which I mean that they're the only people who'll benefit from it. Microsoft has slashed the prices of The Ballad Of Gay Tony and The Lost & Damned down to fairly reasonable levels, though you might be better off going for the standalone retail option if you fancy an eventual trade-in.
Oh, and Grand Theft Auto: San Andreas is also down to 800 Microsoft Points. It's a great game, and one that's well worth considering at this price.
In other news, prepare for a mandatory system update today. No new features will be added, but it's apparently laying the groundwork for a major upgrade scheduled for later this year.