Update!
The Wharfedales arrived from AMS on Saturday (I ordered them on Tuesday afternoon).
All is good, they arrived in excellent condition and I got them hooked up on Sunday morning after a trip to GC on Saturday evening for interconnects.
I've been mixing with headphones for the last few months and it gets very tiring. It's nice to have the monitors, and get some air between my ears and the sound source.
I'm not sure I can comment too intelligently on the Wharfedales' sound, as I have no other studio monitors with which to compare them, and I surely can't claim audiophile ears after all the years I've abused them! Also, my studio situation is far from ideal acoustically.
That said, the Wharfedales sound very "tight" - excellent midrange and high-end detail, not exceptionally strong on the bottom end. Just what you'd expect from a decent-quality 6-1/2" two-way system. The low end is just fine when you are in the nearfield sweet spot, though. I suspect they'll come along a bit with a few more hours of use. At any rate, they seem an exceptional buy for a powered pair.