If you plan on racing at your local track, you might want to consider buying equipment legal for your class. Since you're just beginning, your best bet is to run stock. That way you can get familiar with your car and learn how to control it. In the rookie class you want to gage yourself with the Expert stock guys. Pay attention to your lap times so that you will know if you are improving. A good stock motor would be the Monster stock and the CO2 motor. Gear the Monster between 7.3-6.8, depending on the track (116X27 or 28)(84X21). I just bought the Much More CTX-C charger and it works awesome. Make sure you bring down the delta peak under 10. Also batteries are important in the Stock class. The IB3800's are very effective. They have plenty of punch and runtime. Here is a link to the X-ray site and it will help you on finding set-ups for your car depending on the surface you are driving on. Later
http://forum.teamxray.com/xsheets.php