if youre going to do the Trex, go the whole mile and get the SEv2. itll cost a little over 1g for the complete package, but itll be worth it at your skill level.
if you can fly the BCP, the trex SE will be easy. if you can Almost nose in with the CP you CAN with the trex for sure.
logictech gyro, 9650, DX7 microlite heli + SEv2 (motor, esc, & lipo included)
100 + 60 + 335 + 540 = a little over 1g retail (if you have connections this is about 700 at cost
)
that is probably the cheapest and best flying combo. normally i recommend the HS65MG servos, but the DS285s are excellent and already come with the dx7 package, just a little fragile. Will save u 35/servo to start with. logictech is proven to perform in the same class as a 401 and it's quite a bit cheaper. You wont regret it.