Hi cgersh - you didn't say what happened to your A55 but I had an A57 that just stopped working, mid-shoot. If I had to guess I'd say the motherboard went bad. I've also had a Sony lens go bad under similar circumstances. I loved these Sony devices while they were working but the experience makes me a little wary of Sony camera products in general. I've never experienced similar issues with the Nikon, Canon, Pentax, Panasonic, etc, cameras I've owned.