Amazon offers the Patriot 32GB LX Class 10 SDHC Secure Digital High-Capacity Memory Card, model no. PSF32GSDHC10, for $17.99 with free shipping. (Fry's Electronics offers it for the same price.) That's $0.56/GB and the lowest total price we could find by $4, although we saw it for $4 less three weeks ago (since expired).