What's your definition of "too expensive"? The SOG Bowie models range from $100 - $170.
For that price you can buy almost any model from Bark River. They look great, so they make excellent display pieces or fondling items. But they're also well made with high-quality materials (better steel than the SOGs) and are completely functional. Additionally, most Bark River models have convex grinds, so you'll have a lot of fun keeping them sharpened.
Have you seen Anza knives? They are one of the best bargains in the knife industry. In addition to a large selection of designs, they can customize any of their standard models (change handle materials, adjust size, or whatever) or design you a completely original knife.
I'd also recommend looking at Scanadanavian knife companies. Most use natural materials, quality steels, and the prices are very affordable. Karesuando, Frosts, Helle, Marttiini, etc. Ragweed Forge has the largest selection I've seen, and AG Russell has some nice ones from Marttiini.
Have you seen this?
http://www.agrussell.com/knives/by_type/straight/traditional_japanese_hunting_knife.html
You should also hawk-eye the "Custom Knives for Sale by Maker" forum section. You'd be suprised at the knives, and their prices, that sail through there. You gotta be quick to respond though, if you see something you like.
Happy Shopping,
-Bob
