What is a good new skateboard deck and setup(if mine isnt good already)?

ok so i have a speed demon board it is starting to bend in the middle i can barely ollie(just started sk8boarding a couple weeks ago) so i have some really really crappy wheels idk the brand but they went thought hell and came back they are warped a bunch but ok lets get down to the question so i need a new board for sure light weight and yet not going to bend easy or snap and is good for riding on a concrete driveway(most of the time on concrete) i have Venture P.J. trucks they work pretty good so far but the kid that gave them to me(traded) the axels where stripped so i had to hammer the nuts on to it(not a good idea but it worked) and on the trucks the king pins are mitch match so i might put my baseplates from my other trucks on them so the king pins aren't mitch match and i have money budget for the board so i can spend about 30-40 maybe 50 dollars so yea i need your help