Are you looking at getting back into racing or just bashing? If your just bashing you'll want a more simple ESC with less settings to mess around with so you can focus on having fun. If your considering going back into racing but are bashing at the moment, look into something that will work well for bashing but also for racing in the long run. As far as motors go, your looking at a 540 brushless motor and if your looking at racing, read up on where and which class your interested in running so you know what turn motor to buy. It will be allot easier to buy a more well known brand that has support so if you are stuck and don't know what to do, someone will be able to help you, and buying a well known brand doesn't necessarily mean having to fork out allot of money vs a cheap set either.