ORIGINAL: BarracudaHockey
A 90 is a LOT of helicopter and they cost a pretty good buck to keep in the air. I normally tell people the 50's are the way to go, especially for your first nitro. Most people (me included) with 90s own and log far more time on 50s because they are no where near as expensive to crash (about half) and consume about half as much fuel. I was going through a gallon a day when I had my 90 Avant.
Just some food for thought, not trying to discourage you.
Other than that we would need more information to give you specific advice.
BH is once again on the head.. i burn atleast a gallon a day with my 90 size bird, that makes up to be about 10 flights at about 9 minutes per flight. my 50 if i burn a gallon i've got about 18 flights at 8 minutes per flight. crash cost is EXACTLY half of my 90. hell i can buy everything you break in a crash for my 50 for the price of just my blades on the 90.
Dont get a 90 for your first heli. pickup a Trex 600N or similar.