First off, welcome to the board, always nice to see another 10mm devotee.
Now to your question.... factory offerings are pretty slim. Glock has 2 10mm pistols, the 20, which is really large, might not fit your idea of a carry piece (although I do know someone who carries one concealed), and the 29, which is closer to the 19-23 in size, and thought to be the proverbial cat's ass by alot of 10mm/Glock types. EAA still imports the Witness in 10mm, but only in the full size, and the reputation of the Witness line is spotty at best, I don't know, I've never fired one. S&W makes the 610, a honkin' big N-frame in 10mm/.40 S&W, but that's a tough gun to conceal (although I did carry mine around CCW for a week to settle an argument, I wouldn't reccomend it). Kimber recently released a 1911 pattern gun in 10mm. Those plus the DW you already mentioned is about it for factory new...
Now, in the used market, things widen out a little but not much. Smith large frame autos (10mm and .45ACP) tend to be better thought of than their other auto offerings. I have a 1006 (very big and heavy, but a sweet shooting gun), and a 1066 (basically the same gun with about an inch less slide and barrel). Smith also had a few other varitions on the 10mm theme with different fire control systems and such. They're nice guns, still reasonably easy to find, and if you don't mind the weight the 1066-size guns carry fairly easily. Colt made the Delta Elite, which is the 1911 chambered in 10mm. This is what I carry, my custom Delta is supposed to get back from Ted Yost tomrrow actually. Several other companies made 1911 pattern pistols in 10mm, including Springfield, AMT, and probably some others that I'm leaving out.
Another option is the custom route, which can be quite expensive and time-consuming. After my Delta gets back, I'm planning on putting a Commander-length 10mm upper on my Springfield Compact frame, for carrying in hot, hot weather or when the big gun just gets too heavy. You could possibly swap slides on your DW, there's a world of possibilities out there.
Well, that's my quick-and-dirty 10mm primer, I hope it helped a little, I'm sure some of the other members here will contribute more than I can. Again, welcome to the board, we're happy to have you.
DanO