The Ogre Mage's presence in the first 3.5 Monster Manual always intrigued me a little. There are many races capable of taking class levels in, say, sorcerer - in fact, many creature descriptions include an example of a "classed" monster. The Ogre Mage's name is fairly unique in the D&D lexicon - it isn't just an Ogre with a class, but a race of its own.
One thing you can get with very high-level spellcasters is they have ways to turn their spells into spell-like-abilities - the former needing meditation/preparation, the latter simply being something you can spontaneously do - the idea behind this being that once you've cast a certain spell a hundred times it becomes second nature. I like creatures like Ogre Magi who have spell-like-abilities because it's like they have some kind of savage, animalian magic that they can do reliably at a young age, whereas humans have to put on airs and study for decades to get anywhere.
tried to experiment with some Zangief scars and body piercings. some pretty fascinating reference photos out there, folks.