I have a Walkera 60 completely upgraded with a t-rex retrofited aluminum head, align blushless motor, castle esc, thunderpower Lipo, futaba gyro, futaba 2.4 radio system, and carbon fiber blades. I've also rebuilt it about 50 times! It seems the electronics are always salvagable but the main gear, blades, frame and the rest of the heli gets destroyed when crashed. I have had it for a little over a year now and my skills have greatly improved. My teacher is trial and error! Costs me lots of $$$ but like I always say, a cool hobby is an expensive one!
I like to fly it at the mountains over a cliff so I have lots of time for recovery if I screw up. The ground is a heli's worst enemy! I will post some pictures a little later.
Plus, I have a 1/18 scale duratrax vendetta rc car with a 7.4v lipo, brushless motor and esc. That little car flys! I've had to upgrade the driveshafts because they keep snaping under so much pressure, but finally got it right.
I have a Nitro Rustler with an upgraded 3.3 motor, which is just TOOOO much! The front wheels don't like to stay on the ground! The thing goes about 80mph (Ive clocked it at 50 but was hardly on the throttle). But I've done too much dirt driving and now the cylinder is scored. :'( It puts off 1/8 the power it used to but hey, the rebuild only costs $100. It's been out of commission for about 8 months now because I haven't got around to fixing it. Oh well, I love my other electric RC car and heli!
hehehehehe !
. many months of waiting and building all pay off -- becuase as i see it, i am investing my money and time in cold hard, ever so aginising, fustration! 
