i always go there for my strings.
im using Dean markley's nylon.. the black ones since it has a much more mellow tone.
and the lifespan of the tone is quite long. unlike those from D'addarios... the tone doesnt stay long
I use Ernie Ball Slinkies, and I buy them from either Davis Guitar or Standard Value. My Ibanez acoustic is currently strung with D'addarios but those were bought at Swee Lee. D'addarios sound good but like others have said, the tone just doesn't last long.
Gotta love them Ernies. They have never failed me yet!