Look for aptX (new BlueTooth version 4.0) products (like NuForce S3-BT) for better reception with less/no latency (signal delay for use with video applications).
Also recommend active over powered speakers. Active uses one amplification channel per driver and crossovers before amplification which allows for more tweaking of crossover such as use of DSP (digital signal processing). Actives provide better dynamics, flatter frequency response, and incredibly deep/full bass. But beware that most actives are studio monitors that produce a dry/un-involving sound that reveals all the warts versus a more entertaining sound for enjoyment. Don't know of any aptX/active monitors, but good examples of home use actives include Emotiva 4, Vanatoo Transparent One, and Adam A3X.
I scratched the Yumi off my list of prospective powered/active due to lack of info/professional reviews (plenty of known options and not interested in BT) but it looks promising. BTW NuForce also offers an AirDAC that uses aptX.