Hello, I am making a game that is similar to ToEE in many ways.
It's called
Knights of the Chalice. You can read all about it at
www.heroicfantasygames.com.
I have written a review of the Keep on the Borderlands demo
there.
The PSP game mentioned by Lord Plothos is Dungeons & Dragons Tactics. From what I've heard it's not as good as ToEE.
I would recommend Dark Sun Shattered Lands and Wizardry 8 instead.
Dark Sun's turn-based combat is nearly as good as that of ToEE, and is faster.
Wizardry 8 uses a phase-based combat mode. A bit slow, but better than real time with pause, in my opinion.