I ordered this because it was a smoking deal. It came fast and it's been working great. (Technically I ordered the 32 GB but I can't imagine a difference. It's literally ordering from SanDisk.)

I have a 64GB Sandisk Ultra that works great. I used it in my old phone (Droid Razr Maxx) and then my G3 when I got it on release last July. So it's been working great for the last year or so.

Should be able to get it for around $30-$40.

I really can't wait until the 128GBs come down to this price point in a year or two though - 64GB is enough for most things but load it up with a few movies, some music and a few nandroids and you've pretty much filed it up.

http://www.amazon.com/SanDisk-Ultra-MicroSDXC-Memory-Adapter/dp/B007WTAJTO