What's to do in San Diego?

My wife has a work conference in San Diego at the tail end of the week and I'm flying out on Friday to join her. I've never been to San Diego, but I've heard nothing but great things about the city which Ron Burgandy implores to stay classy.

I've already made plans for Saturday night. Yep, baseball. I've haven't crossed a new MLB ballpark off my list in a couple of years and I'm truly looking forward to exploring a new stadium. PETCO, I'm on my way!

The Diamondbacks will be visiting the Padres on Saturday night and I'm sure I'll see plenty of bench guys in the lineups for both teams. It's never too early to get a look at what you might have in the fold for next season. Especially considering how the Dbacks have been playing as of late:

Hopefully, it'll still be an exciting game.

This is a baseball card blog, so about cards of the two guys who I consider to be the faces of the San  Diego and Arizona franchises.

Tony Gwynn, for my money, is the best pure hitter during my lifetime, may he rest in peace. It would take an awful for someone to wrestle the title of "Mr. Padre" away from him. I debated on whether Randy Johnson or Paul Goldschmidt should get the nod here. I love me some Randy Johnson, but Paul Goldschmidt is quietly putting together a HOF-caliber career while only suiting up for the Diamondbacks.

Alright, time to poll the audience.

Here's what I need from you all:
1) An interesting restaurant to take my wife out for dinner on Friday night - It can't be too fancy, because I'm not packing anything but shorts and t-shirts. Also, no chain restaurants, please.
2) Something to do to fill the time on Saturday - my wife's conference is an all-day event and I'll be looking to see some sites. I've thought about Sea World, but I'd love to do something less commercial/pricey if possible.
3) A good place to consume 1000 calories in one sitting for lunch - Friday night's dinner should be more of a well-balanced meal and Saturday's lunch should leave me craving nothing more than a beer and dog at the game that evening. Hey, when the cat's away the mouse will eat whatever it wants.
4) Card shop - anyone know of a decent LCS I could kill an hour or two at?

I'll take any and all suggestions into consideration!  Thanks in advance!