If you're looking for cheap 32gb class 4. I know Sandisk is selling their class 2 now for $62.99 but for a few more dollars you can get a class 4. Note - there is tax if you are in california. Otherwise no tax. But if you checkout with Google checkout you save $5.00.
Buy.com - 32 GB MICRO SECURE DIGITAL FLSHCARD W/SD ADAP - CLASS 4
Here's another one for $66.65 at Amazon
http://www.amazon.com/Duracell-Secure-Digital-Adaptor-DU-2IN1-32G-R/dp/tech-data/B004AM6SOG/ref=de_a_smtd
Buy.com - 32 GB MICRO SECURE DIGITAL FLSHCARD W/SD ADAP - CLASS 4
Here's another one for $66.65 at Amazon
http://www.amazon.com/Duracell-Secure-Digital-Adaptor-DU-2IN1-32G-R/dp/tech-data/B004AM6SOG/ref=de_a_smtd