Chris,
I'm in town this weekend, probably just doing my usual playing tourist around San Diego thing taking pictures. I'm always up for a Zoo trip. They have a nightime entertainment thing at the Zoo too, with a Chinese theme, including acrobats, lion dancers, stilt-walkers etc. Come on down. It's ComiCon weekend, so downtown will be jammed, but the rest of town should be normal summer levels. Heather and I tried to get tickets to ComiCon but by the time we found out about it they were already sold out.