Got mine from gameyeeeeeeeah a couple weeks ago. Set me back 45USD all said and done. Grabbed a Kingston 1g MicroSD from newegg, and as luck would have it, it was the Japanese one, so I'm stoked.
I've not had problems playing anything thus far... I
Shawnita used to get her pills from some other street pharmacist and after switching to The Psi Discount plan she now only has to swallow two things a day!