So I've finally jumped on the tablet bandwagon, but the best 7" tablet available in my price range turned out to be the Nexus 7 (2013). Newegg has a short time sale on it, and I bought it for 10% off.
Unfortunately, the Nexus 7 doesn't have a built in microsd slot. There are ways around that, and I've found a nifty little mini usb to microsd adapter: http://www.meenova.com/
And I've found instructions on rooting the Nexus 7 and using Stickmount. So far so good.
Now I've got to figure out microsd cards. This extra storage will primarily be used for video. So I need a reasonably fast microsd card. 32gb looks like it will be plenty, and most of the prices have been acceptable...$20-$30 or so. However, many of the user reviews for the class 10 cards in this category have been unnerving. The class 4 and class 6 cards seem to have more favorable ratings, at least for the ones I've seen. I've been looking at Sandisk for the most part, but will consider others. My old Kingston SD cards have been bulletproof for my camera.
Which file system should be used? Fat32 seems to be widely accepted, but exfat has support for larger files.