Kelvarr
ArboristSite Lurker
Dolmar ps-510.
look it up.
price dependability,TWO year warranty.
not as fast as it's more expensive brother but a LOT cheaper and the quality is without question.
I called one of the Dolmar dealers near me (about 15-20 miles away) about the PS-510. They have it there for me to put hands on. The downside is that they want ~$415 for it.