Where to buy black truffle paste in SF?

[babyfork]

Making a T-Day recipe that requires black truffle paste. I know they had it at Woodland's in Marin a couple years ago, but prefer to buy in the city. Any tips? Also, any preferences or info on brands?

[nja]

I'm pretty sure I've seen it a Pasta Gina in Noe Valley, but call ahead as I'm not 100% certain.

[Concetta]

Far West Funghi in the Ferry Building

[rjf]

I'm pretty sure Rainbow Grocery has it.