Hi, I guess if it's about orchestral hits simply you may find yourself better if going for samples and after tuning pitching them in the tune you need with one of the many audio editors/ audio pitchshifter plugins available for free. CAn be a way. Otherwise you have to lighten your wallet and go for some orchestral sound sets maybe as MIroslav that in this period sometimes can be found at a cheap offer, or spend more money on some native instruments.
Or if you want to save money, look in the web about free sfz orchestral files (there are many, you have just to spend some time digging and looking around) to be played with a sfz free player as Sforzando, a pretty good one.
Cheers
Diego