Love, love, love this place - the food is amazing, staff is friendly and it's SOO reasonably priced.
Here is an answer to my own question (weird, right?). My current favorite right now is Hong Kong Lounge on Geary. I was really skeptical because the name of the place is obviously a ripoff of Hong Kong Flower Lounge, which used to be at this location, but the food is good.
Any other places I should be going to?
I love this place--thanks to a chef buddy for turning me on to it. Super-fresh shrimp, so don't miss the shrimp noodle roll! You will feast, yes, feast for $20. No carts, so it comes out of the kitchen piping hot.
I'd say the best TAKE-OUT dim sum is hands down Good Luck Dim Sum. Super cheap, line moves reasonably fast (even though its almost always long), and the dim sum is as good or better as any you'll get from a sit-down place. Don't expect super friendly service, just order and keep moving! BBQ pork buns, haw gow, siu mai, chive dumpling w/ shrimp, deep fried taro root, and sweet rice with chicken. All awesome!
Be sure and spring for the fancy tea. The waitress does a little tea ceremony at your table. Fight the urge to grab your little cup untill she's completely done. Then order some Dim Sum and eat drink. As good as any DS in the city, and a bargain. OH, if you're hungry, get a bowl of jook. Since it's only about $5.00, the first time I ordered it, I was expecting a nice little soup bowl full, but no, you get a giant tureen, enough for 4-5 people, and it's delicious!