After a week or two of lurking, I bought a GTUL to try this out. I figured for the price, I couldn't go wrong.
I did a little DIY on the tree straps and tarp, using what I had around the house. Well, now I won't go back to the ground. I've already purchased proper tree straps, whoopie slings, and an adjustable ridgeline.
BUT I need some tarp advise. I live in the south, and am a fair weather camper - so nothing too extreme is needed. Can a decent quality (but light) tarp be had for under $100? If so, where?