FEG has introduced two single-action pistols under the PJK-9HP model designation. The first had a tapered slide (as opposed to the step in the Hi-Power slide) and had a ventilated rib with sights that stood up and got in the way of the weak hand. This model has been re-designated the FP-9. Accurate, yes. I remember picking up my version for a hair over $300 (including state sales tax) about ten years ago. The second pistol to bear the PJK-9HP designation had the Hi-Power stepped slide and smaller sights. The manual safety was a welcomed increase in size from the Browning/FN version. I remember picking one up for $225 at a gun show. The blueing is a touch thin, but still very nice.
FEG has produced the second-generation PJK-9HP for Mauser (as the 80SA), Israel (as the Kareen), and for one individual that reportedly sold a number of them to Saddam Hussein in exchange for a pile of petro-dollars. Currently, the FEG pistols are being assembled in the USA by Charles Daly and marketed as the Charles Daly HP. The CD version has an initially gritty trigger pull that seems to take forever to smooth out.
Another Hi-Power clone that you might consider is from Argentina, the FM Hi-Power was produced on FN machinery under license (early FM Hi-Powers are just as good as the Belgian versions, there is also the M90 and M95 with the slab-sided slide so beware). My personal Hi-Power is an FM frame with an FN slide. Prices on the FM's run from $200 to $325 (this was used and new, respectively, and eight and twelve years ago, respectively).
Another clone is the Arcus 94 from Bulgaria. Nowhere near the elegant lines of the FEG or even the FN, it would serve to be a "truck gun" that you won't feel bad about tossing in the glove box. Slightly rough finish, blocky lines, but takes the same magazines and is utterly reliable. I have picked up an Arcus 94 for $245.