Airtronics M8 (they have just released the synthesized module and receiver), GM makes afoordable and good ESC (if you want to do stock racing), if you're not planning to race the pro series, any GP batt-packs are good enough and economical. I use Orion motors (Chrome stock) and trinity (D5 10x1)
don't forget to get yourself a good charger to charge your batts, and if I may suggest, an equalized discharger,... any well-known brands are good,... price differences and added features here and there,.. just get one that fits your budget (I bought a charger first before investing on batt-packs)