One of the best all-around, affordable escs (if you do not need/want timing adjustments) is our old workhorse GTB---soon to be replaced with the highly upgraded GTB2. The GTBs are sensored only, with very low on-resistance (for cool running/high performance) with a low 3.5T 540 motor limit and a 4.5T 550 motor limit.

Our web-site has a lot of information if you want to do some reading :

Technical Info Updates

This list has an article discussing the differences between sensored and sensorless escs.

We will not be including the brush mode in any new BL controllers; we included it initially during the transition from brush to brushless.