look for one known as "The Island." make sure to have all your items you want/need with you before loading it up. if not, then purchase a few dozen in one of the trainer modules. apparently you will need it by the middle of the module.
another one which has hit Hall Of Fame status is "Caereena - Krakona Rising." I have the website listing for it here. I am not certain how hard it is in terms of fighting vs. roleplay, however, so you would have to check it out after finishing "The Island." according to the designer, this one will easily take twenty hours out of your week to finish, and there is no multiplayer accessibility involved.
http://nwvault.ign.com/View.php?view...Detail&id=4045
don't forget the Diablo modules for sheer chaotic playability all the way to epic levels. there are a few servers which run them day and night, but a few of them are "Clan-based" and therefore a little annoying to check out. there is also the RDG series (Random Dungeon Generator) by Eladrin. (same person who helped out with Infinite Dungeons.)
[ 06-28-2006, 03:32 PM: Message edited by: Mozenwrathe ]