Go with the CC ESC. They are superior in their programming. The Kontronics are good... (probs. Heavy, rather large, if you love programming to jingle bells knock urself out) With the castle link software you have endless programming right though your comp and it works great. YES they are worth the price.

The NEU motors are great motors if you are looking for one. They do offer one for the T-Rex. Astroflight also has a good motor for the T-Rex. And last but not least..the align motor will work fine. Not the best quality but it works.