I have an H31, and I love it! It replaced an older Plus Piano. It doesn't do
true HD (although it does accept 1080i thru HDMI inputs), but for DVDs I can't imagine much better for even several times the price. 4x color wheel, 16:9 native res, and a really nifty remote are all standard.
I really considered an AE-900U, and will probably get one eventually, but for the short term, given the dearth of HD content here, I'm delighted with my Optoma.