The Totem Acoustic Sttaf would be a good bet. It's relatively easy to work with, has quite a bit more heft than the Arro, and does the 'monitor' thing very well. They go for around $1000 used (or less).
I once owned the Dynaudio Focus 110, and while its a lovely speaker, I found it to be very dynamically limited compared to many other competing monitors. One unconventional option you may want to investigate is the Mark and Daniel "Maximus-Mini". This thing can jam out, is fairly easy to place, has great range for a monitor its size and has a treble presentation that's well beyond where a monitor in its price range should be. The only caveat is that it requires at least 60 solid watts of solid state juice to sing. They like power.
Other great options would include a used set of ACI Sapphire XL's, They don't have quite as much 'bite' up high, and they can be difficult to find used, but I don't know of anyone that doesn't like these speakers. They are among the most enjoyable affordable monitors that I've personally come across. Great bass and dynamics as well..
Lastly, I'd suggest looking at a set of Ascend Acoustics Sierra 1. While their tonality never won these ears over, they are nonetheless great monitors that can be had brand spankin new for under your budget. Ascend makes great gear, and these monitors may have the efficiency, dynamic prowess, frequency range, and ease-of-use that you're looking for. Best of all, if you buy them new, you can always return them if they're not your bag. If they turn out to 'do it' for you, then you can kick back with a little extra coin in the pocket.
Good luck!
