The Sabian X-20 line is pretty good. It sits between the entry level cymbals and the pro cymbals. If you look online, you might be able to get used cymbals, and save even more money. Of all the cymbals that I have, I think I only bought 2 that were new. I don't think you'll be happy with the ride as a crash, because you won't get nearly as much wash and sustain.
Another option might be the Paiste Alpha line. I would suggest that you audition them, because I have never tried them, but I know a number of drummers that do like them as their primary cymbals.
Of course, what sounds good to your ears might be different to what sounds good to mine, so definitely do some listening. Both Zildjian and Sabian have sound files on their sites that can help you get a rough idea of what you might like. At least that might narrow things down for you.