you have options,
off the shelf items, or you can go slightly upmarket off the shelf and go for ohlins, aragosta, quantum, nitron. any of the last 4 your paying well over a grand but you get what you pay for
also depends of course useage, if you are mainly street you will want a slightly softer springrate and maybe not as much adjustment whereas track you may want stiffer and a lot more adjustability, your average cheap coilies will do it happily all day long but maybe not as well or for as long as others, its all personal tastes and styles
i run quantum single adjustment with springs to my spec