gtting a pre with 3 rca outputs and high volt pre outs will be difficult under 10k. however u can find get the best of the 2 rca output PREs in this range.
eg pioneer 3550ui. should cost u b/w 9-10k.
the best setup to run with this pre would be a pair of comps upfront and rear coaxials/subwoofer at the back. aplification can be provided by either 1 or 2 amps for the speakers/sub.
if u intend on going sq, a better choice would be to look into some of the kenwood pres (known for their more neutral warm sound) as compared to pioneers. the interface on the pioneers is alot more friendlier.