I have and like the Gossamer Gear Gorilla pack, but the ULA Ohm looks very nice, and I almost got it instead.

I would recommend the following Tarptents because they handle condensation better due to being double-wall or having a liner to prevent it from dripping on you:

Rainbow
Double Rainbow (2010 model was updated to have plenty of room for 2)
Moment (may be coming out with a liner soon, I hear)
Scarp 1 (double wall)
Scarp 2 (double wall)

But, some condensation dripping isn't likely to be a major trip-killer either.

If you're planning to be out in real winter conditions, that's a big factor in your shelter selection. Another factor would be if you plan to share your tent with someone else. I went with a Tarptent Scarp 2 because, although heavier than other Tarptents, it works well for both winter and three season use if you get both solid and mesh interiors. I also have a Golite Shangri-La 3 which I use as a lighter option (fly only), using it as a teepee-shaped tarp (2 lbs with 15" noseeum mesh skirt I sewed on).