I've been doing some shopping for a DLG myself. Something about them just has me intrigued as hell lol. I will say that through my research I learned to stay away from the Hobby King ones. Almost all of the non "sponsored" reviews have been really bad, things liked warped wings and tail panels, they are really weak, and they are all too heavy.
The Whipit seems really cool but I don't have a radio for it (I fly ATX)
I've been looking at the TopSky Disser, that Skip Miller sells, I figure if I'm gonna do it I'm gonna jump in with both feet like I did with Giant Scale. It is one of the cheapest contest capable composite DLG's on the market, so I'm in as soon as I save up some cash
Here's the link for anyone interested
http://www.skipmillermodels.com/Super_TopSky_3_0_Disser_p/topsky_3.0_d.htm