I have a "set" of HKS Coilovers for sale. $150 takes em. Local pick-up in NM is preferred, but I can get a UPS shipping quote if you really want them. The fronts are Hiper-L and the rears are RS. I have four that are complete and a 5th broken one for parts or whatever. These are being sold as is. They function, but are "sticky". They can be sent back into HKS for a nominal fee to be rebuilt and I think you'll find even for $150 plus their rebuild fee, you still come out way ahead. I had these on my 02 WRX for a while and they were a pretty decent ride especially for cheap. They have a little bit of surface rust, nothing a little TLC can't cure.
HKS Subaru WRX coilovers Hiper/RS:eBay Motors (item 170365027967 end time Aug-03-09 17:42:41 PDT)