Rockstar have sent through word a stand-alone disc for Grand Theft Auto: Episodes From Liberty City will be available in Australia and New Zealand this Spring, and will feature both Lost and Damned and The Ballad of Gay Tony, as well as the full game.
This means you won't actually need to own GTA IV already to play these if you pick up this combination package for Xbox 360. No pricing has been announced as of yet, but Rockstar have told us to stay tuned for details shortly.
You can check out our review of both GTA IV
and GTA IV: Lost and Damned
as well as check out our game page