I'm a big fan of
Mountain Hardwear Tents. Their superlight three person tent seems like a good fit for you (room for two, packs, and just under 5 lbs). It's on the higher end of your price $320 MSRP, but my experience with any Mountain Hardwear gear is that it's worth the little extra you spend for it (especially their windproof jackets).
I personally have the REI Half Dome 2 tent, and for my purposes it suits me well. I have a cover for my backpack, and everything I need direct access to in the tent gets stuffed into a pillow case that I use as a pillow (flashlight, clothes for the morning, and such). I NEVER bring food into the tent due to bears and other wildlife. I've had 6 inches of snow fall on my Half Dome and been perfectly warm and comfy the next morning (aside from not wanting to get out of the tent).