For everyone who likes taking a lot of pictures, a 32GB+ memory card is a must. When I use up all the storage on one (that can take a long time), I start another and it is a cheap and small alternative to an external hard drive backup for all your pics.
Right now, you can buy a 32GB Sony SDHC memory card for $20 with free shipping from Ebay.
This is not an amazing deal, but it is decent. My rule of thumb is that I try to pay no more than $0.50 per GB which is closer to $16. You can buy the same card on Amazon for $22. There are tons of ways to get Amazon money for cheaper so this might even end up as a better deal, but if you are in need of an SD card right away, go with the Ebay one.
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