I finally threw in the sweat-soaked towel and purchased an air conditioner two days ago (my first attempt weeks ago failed when Sears sold the unit I ordered online to someone else due to the high demand) after enduring the recent heat wave that has only just subsided (it's downright pleasant cool right now, of course). The decision wasn't too difficult, as I found a slim Sears brand AC (actually a rebranded, highly reputed LG unit) I had always coveted at 50% off (a return unit with minor cosmetic blemishes).
The significant discount was the impetus for purchasing the appliance, but it was the 2006 Home Energy Efficiency Rebates from the LADWP (yes, those guys again) that really made this deal a steal: the $91 energy efficient Energy Star air conditioner qualified for a $50 rebate!
Fill out a simple, downloadable PDF form, mail the LADWP a copy of your energy bill and original receipt, and sit back knowing your smart energy efficient appliance was a smart financial choice too. Yes, I realize 6-8 weeks from now when my rebate finally arrives, the unbearable LA summer sensation of wearing three sweaters will no longer be a constant nuisance. But with that $50 back, I can get myself a nice warm sweater for those brisk autumn evenings.