guitar strings nr. Prospect/Crown Heights butNOT Guitar Ctr?

I know that GC staff can be completely godawful, but I go there to get strings all the time and it's painless enough. In fact, the last few times I went, I've been surprised at how nice the guys at the counter were. It's surreal.

That said, I actually don't know of any. It would be good to know, though. I'd like to be able to walk to buy them - GC is just a bit too far.