I've made an underquilt that I will be testing at the end of this month. I've fixed the air gaps, and feel with adding a pad and solar blanket, I could probably get down to some realistic temperatures that I will see on my AT thru hike in 2008. Now I need a top quilt to cover up with. I like poncho liners, but they aren't quite enough. I don't want to spend a lot of money, or get something real thick. I will be using my thermal underwear as part of my sleeping insulation. Does anyone know of any good inexpensive synthetic quilts? I appreciate any suggestions.