One of mine has a design similar to a khopesh, you might be interested in it. It's purely fantasy though, not historical.
I modified my original post a bit in the quote above, so sue me.Janus said:
The texturing could be better I think, but this is about the best I can manage. It's funny, I'm fairly good with graphics and Photoshop, but I just can't really texture very well.
Final count is 352 triangles on the scythe sword and 398 triangles on the khopesh/scimitar style one. Both are almost exactly the length of the native falchion, so are somewhat short.
Anyone interested can either PM me and I'll send you the various files, or you can just get the end BRFs and textures from Darkmod.