Yeah, Bioware's RPGs are the best, Baldur's Gate 1 and 2 are easily the best RPG I've played till today, the one I didnt like much was Throne of Bhaal, it had somewhat of a good idea but it seemed much more like a rushed expansion than a fitting end to the whole saga.
Try the Semi-Offical Ascension mod. TOB as it should have been.
And Karajorma. Why don't just try... Say... EasyTutu (BG1 on the BG2 engine) with some mods (ESPECIALLY the BG1 NPC Project, which adds BG2-like banters to BGtutu?).
My party in BG1: Minsc (Makes you forget all the things you have been trough), Coran ("Life is adventure or nothing". He is so damn right), Viconia (My kind of character. Hated almost everywhere, and somehow I just did the most difficult romance in BG2 without any retry...), Imoen (In the BG1NPC project mod, she regurlary pulls of practical jokes with other party members. Poor Ajantis!), and Dynahier (She is such a good invoker in BG1.. I haven't "tried" her with the BG1NPC project yet, but I am going to).