Just in case one of the forum members doesn't have something that fits the bill, I can highly recommend the Alps Mountaineering Zenith 2 (since rebranded the Zephyr 2). Heavy for this site at 4 lb 8 oz, but very easy to set up, vents well, and spacious for two. The tent body itself is freestanding, but each of the two vestibules requires one stake. It's sold at Sierra Trading Post for just over $100, and you'll get frequent discount coupons if you're on their email list.
It's been good for me as I'm working toward lightening my load more.