As Jason mentioned, I think Escena is a great option to add to any Palm Springs trip, especially if you are looking to add a "value" option to an itinerary. It is also right next to the PS airport. I have played with a group of guys who literally walked off their plane and caught a twilight round upon arrival.
I'm a big fan of the Mountain Course at La Quinta, but they have been closed since a flood in August 2013. They are set to open in mid-January, but I would definitely research course conditions before booking a time.
If you are looking to get 36 in, PGA West will give you a replay rate on any of their 3 public courses (Stadium, Nicklaus Tournament, Norman) and the two La Quinta Resort courses (Dunes and Mountain). Not exactly sure what the replay rates are now, but the Stadium is the most expensive, then the Mountain and Nicklaus Tourney, with the Dunes and Norman being the least expensive. (Having played the Dunes once, I would not go back considering the other options in the area.)