gamefood: Thank you two very much! :)
That's quite interesting and fascinating, I want to start playing it finally, but... I can't decide for the perfect time...
According to what I have heard and read about it (here and elsewhere), it might be "just" the best game in video game history... Man, that seems nothing to be played in the meantime or out of boredom, that cries for mental preparation. ;)
Are other (RPG-) games still fun after PT? Especially Icewind Dale and Baldurs Gate, they both are also yet unplayed by me. Would you recommend an order to play these three?
Good luck :) Just be aware that the game is very heavy on story and light on action, especially early on, with the story and pacing being more akin to a character study than a traditional D&D high fantasy story. Personally, that's one of the things I like about it, but I don't want to repeat my gushing over the game too much. As for your other question,
this thread should help you (it only talks about BG and NWN, but I think that the same rationales can be applied to IWD); I don't think so myself, but then again I'm apparently in the minority that didn't like BG that much in the first place.