You used 3/4" ply?

I'm using 3/4" ply on mine, but only because I'm using european hinges for the doors, and I need the depth to drill for them. Otherwise, I'd be using 1/2".
Looks good! You're officially ahead of me. I went diamond hole saw hunting again today, and found some this time!!! All contractor grade though, and $50 a pop including contractor discount! $100+ for 4 holes...uh no thanks. Errrg...I wanted to do my plumbing this weekend.