I know something that would make the game even better....
More classes to choose. Peeking at some D&D books and sites, you can see that there are many classes that would certainly improve the game...
A few examples...Spell-thief (a thief trained in stealing spells from the wizard´s mind), Gnome Artificer (creates his own adventure stuff through technology, much like Jan Jansen), Bonded (two fighters synchronizing their attacks), Rage Mage (a mage with berserk), ....
...and so many other classes you can imagine...
For more ideas, go to this website:
http://www.dreamthief.com/prc.phtml