So, recently I replayed this game. I had a blast, so I hope You'll have too. There is only one problem. The steam version has terrible FPS on any machine that's not a potato. To fix that you have to download the fonts (I don't know how it works, but it sure did for me). So if you have the problem with very low fps ( and i mean really low like 5+ fps) use google. Put "Robin Hood Fonts GOG". Pick the first search result, and you're golden (that should take you to the steam community forum).
If you are not comfortable with the fact, that you have to do some work before You can play the game, you're better off without it. On the other hand, maybe you just collect games on steam, and you do not intend to play this. If that's the case, knock yourself out :]
I'm writing all of that, just so you guys know what you're getting into.