You can't go wrong with the KaBar Dozier. I have been very pleased with it. I've only used it to cut light stuff (snack bags, boxes, etc) and its worked perfectly. If you found a good deal on shipping, you could get the Dozier plus a small SAK for the $30 bucks (give or take a couple) and have two good quality knives.
If you are looking for something a little heavier duty, I've seen Buck 110s in KMart for $29.95.