Shawn, for what it's worth--and I'm not sure it's much --Steven Osborne's complete Debussy Preludes (Hyperion) and Mitsuko Uchida's complete Debussy Etudes (Philips) are very highly regarded in some quarters (e.g., The Penguin Guide), and are currently available from BMG/yourmusic. I don't know if you're a member of either or both, but if you are, you might want to check 'em out.