Although more than you'd like to spend, the Meadowlark 'Swift' at a $1000/pair would be a great combo with the Sony.Meadowlark also makes a bookshelf speaker, the 'Swallow' which is the Swift with less low end, for $800. But, then you buy stands and your at or over the cost of the floorstanding Swift speaker.
The Meadowlarks can be had in some beautiful real wood veneers. Being a new speaker on the market, the chances of finding a used pair are rather slim though.
My other suggestion would be the Vandy '1C'. Another good match for bright sounding equiptment.
Most of the other suggestions are nothing more than audiophile speakers,hence, your typical spit and s--- speakers, that you'll grow tried of very soon.