I live in the Austin market, and here's how mine's setup.
I've had a dish 1000 v1 for almost two years, receiving 110, 119, and 129. Worked very well, I've actually never had any problems with 129 like some.
Anyway, I recently added a 2nd VIP receiver, and also had a wing-dish installed for HD locals.
What they did was take my Dish 1000, and remove the 129 LNB, so now it just picks up 110 and 119. They added a Dish 500 with a single LNB pointing at 61.5, and all are connected to a switch which drives my three DVR's.
Like they said, the dishes point about 90-degrees apart it seems; the 1000 pointing southwest, the 500 wing dish southeast.
Looks funny, but works perfect. I've been very happy with performance of it.
if starting from scratch, I see no reason to use a 1000 dish for the first dish though. Could just use two 500's.