The Gold Box Series were, in my mind, the best RPG experiences of their day. I spent MANY, MANY hours in Phlan exploring, leveling up and completing quests. They also had a great turn based combat system as you mentioned with the ability to very precisely place spells and use chacrater placement strategies to great advantage.
The downside... The graphics/ Even as fond of those games as I am (and if GOG ever aquires the rights its an instant buy for me for each and every one, including the Dragonlance setting ) Even with that level of fondness and nostalgia glasses I cringe a bit at my memories of the pixelated stick figure graphics used.
Oh and if someone already mentioned this I apologize, but I'd throw Arcanum out as a suggestion for those that liked ToEE. Its also by Troika and though there are issues (which you can certainly read about in the Arcanum forum) it was a very solid game and one I can honestly say changed the way I looked at rpgs in a very GOOD way.
Post edited February 22, 2012 by asc1974