I'm quite gratified by seeing some old favorites return, especially the thri-kreen, the spellweaver, and the death knight. Many of the monsters look intriguing, though I have to agree with the MM2 designer who didn't want to include the gem dragons - they never inspired me. I'm really looking forward to seeing how they wrote up the spellweaver - in the 2E version they could cast six spells simultaneously! In 3E that would probably be game-breaking, so my guess is that they simply have some form of spell haste, similar to the psionic power called scism. Can't wait for this book, new monsters are yummy!