I'm not a huge fan of the Paizo version (although it has some very cool ideas in there, such as blood obsidian and their take on the elan), but just to play devil's advocate for a minute, there are ways to include paladins, sorcerers and monks in the DS setting. Monks are probably the easiest, as there are already several monasteries scattered across Athas, from those in Nibenay, to the schools in Raam, to the Villichi convents. Sorcerers are likewise not too hard, once you ditch the idea that they have dragon blood (although there is an interesting angle that makes them long-scattered descendants of fecund sorcerer-monarchs like Abalach-re). Just treat sorcerers as spellcasters who don't need books and learn their spells by some other method. Done and dusted. As for paladins, Xlorepdarkhelm over on the WotC DS board has a great take on paladins. There's a link to it in the sticky archive thread at the top.
. I recently resigned from athas.org, but it's always good to hear that the material is appreciated. The monk thing always baffled me - but my time with athas.org began much after the classes selection was settled on, so it was pretty much a moot point. I houseruled them into my home games without any fuss (er, well, until I had to deal with a thri-kreen fighter/monk/psychic warrior, which proved to be a truly brutal combo, lol). There is a monk prestige class in the prcl download which is pretty neat, though.
