I have both Le Creuset and Staub. Both are good, but I think the Staub products are a cut above. Amazon carries them, but they're a little more than you say you want to spend, more in the $150 to $200 range. But that includes shipping, and there's no tax. If you can justify the cost, you won't be disappointed.
Amazon.com: staub dutch oven
p.s. -- QVC sells Staub, but it's a lower quality product.