buy it via Steam or DVD Rom?

[aidor]

Hi Everybody!

I'm new,

First of all, sorry for my poor english speak... I''m from Spain.

So.. I want to buy the game, and I don't know if buying it via Steam or in a store (the collector edition DVD Rom). I prefer the DVD rom option, but I don't want to play with the DVD in the drive, and I don't want to be connected to internet all the time I want to play. It's possible playing "off line" and without the DVD rom in the drive?

Another point is the updates... If I buy the DVD rom version, I just need to install the last patch (27 april) or I need to install all the previous patchs?

The last question is this: I will install the game in my current C: drive. I'll need to install it in the Steam folder or assosiated to my Steam account? That's because in a couple of weeks I'll buy a SSD drive. Will I have any problem to install the game in two diferent drives simultaneously?

My hardware: i5 2500K + 4GB RAM + GTX 570... I hope it will performe decent FPS... it will?

Thanks!