going to be in san diego for tradeshow Feb 15-18. any suggestions of things to do?

A bunch of stuff to do in San Diego here http://daytrippen.com/sandiego.html

If you don't have a car you can ride the red trolley around and get to most places it even goes all the way to the border. Old town has some nice resturants and is just a couple of minutes away from downtown via the trolley. Try Anthony's Fish Grotto for a great fish lunch or dinner it's right on the bay near the train station.

Visit La Jolla, a small town just north of San Diego.

The Gas Light district is where to eat. There are dozens of restaurants all in a row.

Horton Plaza is the main mall there. A nice walk 'round on a sunny day.

Finally, San Diego does boast one of the best zoos in the world, if you're into zoo's.

La Jolla (pronounced La Hoya)is not a town, it is a community in San Diego. It is pretty cool, but the night life is lacking.

Gas lamp in Down Town is better in the PM and Pacific Beach has a younger crowd.

Old town has some of the best mexican food you will find stateside. (and yes, I have been to texas)

Rent a luxury convertible and drive around the coast. Top of the Hyatt in Down Town is a great place for a view and a drink.

Do not forget Tijuana