Quill (Staples) has a Sandisk Ultra UHS-1 (Class 10+) micro sd with adapter for $14.99 (free shipping):
Thought I'd share the deal before they sell out. I believe Quill has same day shipping like your typical Staples in all applicable areas.
EDIT: They made a typo but it is indeed a UHS-1 card, I currently own two of the same model and plan on stocking on a few more.
EDIT2: This card works on my Sansa Fuze V2 (non-touch), Rockbox version 3.13
Edited by Yazen - 5/5/13 at 10:51pm