33T 110 chainrings exist. T/A, of course, and at least one other cheaper option whose brand escapes me. May not have much in the way of shift aids, but the inner ring on a double doesn't really need them, IMHO.

The 9 speed 11-28 has kinda weird spacing... 14-17% on the bottom 6 cogs (28-14), and then 8-9% on the top 4 (14-11). The 46/33 doesn't look too bad. There's one duplicate, 33x13 and 46x18. This might be a good place to do most of your front shifting, actually... kind of an underdrive / overdrive setup, where you choose your gear range while you're still on the flats, depending on which chainring you're going to be using for the next section. Duplicate gears in the cruising range are usually bad mojo, but this seems to be an exception. I dunno, it might ride worse than it looks... the proof is in the pedaling.

Insert obligatory plug for the graphical gear calculator here. It's the only one I use anymore... one of the best examples of a purpose-specific web tool I've seen.

--Shannon