I was very impressed with the dining fly we were issued at Northern Tier.  It was a light but strong material and I was particularly impressed with the nylon webbing sewn all around with plenty of loops to tie it off wherever it made sense based on the campsite and the trees available.  It is made by Kondos Outdoors right in Ely, MN.  The cost is $70.00.  A lot for a “tarp” but not much for a backpacking quality dining fly.  The weight is not listed, but it did not seem to heavy or bulky to me.  Here is a link to it:  [1] http://www.kondosoutdoors.com/mm5/merchant.mvc?Screen=PROD&Store_Code=KO&Product_Code=DTT2&Category_Code=CG2