Istanbul Xist, Meinl Classics Custom, Paiste 900/Alpha, Wuhan, Zultan (Thomann housebrand) and some of the other turkish manufacturers are all what I would consider good cymbals on a budget. I would not go any cheaper than those, but I am pretty spoilt with my cymbal sounds, I can't stand weird overtones even if it it's not that bad sounding in an overall mix. I have been less than impressed with Zildjian and Sabian's budget cymbals, but they might be better now than they used to be. You usually get more for the money with lesser known brands though. Dream/Saluda cymbals, maybe?