Hi there quadzimodo. One of my builds is a 700 size quad. I am building it to be a experiment in efficiency and reasonable performance. You have not said what size your budget is. For a big budget check out KDE Direct. They are the Mercedes of brushless power. For a less expensive alternative check out T-Motor. They are like the Buick of brushless power. My budget required the T-Motor option: 3508 380kv, 20 amp 600 hz T-Motor esc ( because I am using 4s 10c lipo ). Have fun!