Opinel sounds good for your needs - only thing is you can't open & close them one-handed. If that's a consideration, what about a CRKT point-guard? That's a nice & releatively inexpensive, & handy, knife.
Also, it has a pocket-clip, which is really handy. If you are using a knife a lot, one-hand opening & a pocket clip make life much easier. There are plenty of other examples of decent & inexpensive knives like this. Also, have you checked 1SKS ("store" link above)? they have lots of what they describe as decent liner-locks for under $20.
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The beatings will continue until morale improves.
[This message has been edited by fishface (edited 07-20-2000).]