Shooters Ridge Champion Bi-Pod (6 - 9-Inch) - $19 + Free S/H over $49 (Free S/H over $25)

As the owner of a Harris bipod about all I can say is buy what works best for your intended application. If you'll be shooting from a level surface such as a cement slab or wood table, there are several options available that probably make more sense $$$ wise than a Harris. If you're looking for a bipod that will take the rigors of long range shooting from less than hospitable positions (uneven ground, rocky surface) or is capable of taking large amounts of abuse, then I would recommend a Harris. They are built like a tank and take abuse better than any other bipod I have used.

Something you may wish to do, as I did, is visit several local stores to see and feel first hand what various bipods have to offer as far as ease of use, ease of adjustment, build quality, and options available (rotating, swivel, fixed, etc.). As your handling each bipod, think of how it will be, or can be used. If you'll be shooting from a bench or cement slab, at a fixed target, you can probably forgo swiveling or rotating bipods. If you'll be shooting from uneven or rocky surfaces, you probably won't want a fixed bipod, as you'll need some ability to swivel in order to eliminate cant (having the center axis of the rifle tilted to the right or left). If you'll be shooting at multiple targets you may need some ability to both swivel and/or rotate. Just a few thoughts to keep in mind before taking the plunge.

Sorry for such a long winded answer, but I wanted to provide a little information behind the various options available and why they are available.