buy it via Steam or DVD Rom?

[aidor]

OK guys... thanks for the info about moving steam installation. I hope that this game (the DVDRom version) is not installed associated with my Steam account or in the steam folder (I want to run the games in my Steam account only the games I buy via Steam).

Well, so... if somebody knows if this game (the DVD version) runs independently to the Steam program, I'll appreciate the info. This is all because today I'm going to install the game in my HDD. In a couple of weeks I'll buy a SSD (of course, I can't wait two weeks to taste the game), and I hope there is no problem with the new installation in the SSD.

Thanks!