NEX-7 RAW Conversion
I'm using Corel's AfterShot Pro (formerly Bibble 5). I like the colours better than Adobe converters and I think it's a bit faster, although I haven't tried LR4. ASP has strengths and weaknesses compared to Lightroom. There is a quirk about lens recognition for correction purposes, but there's a workaround.
My experience is that with the 24Mpx files from the NEX-7 you need a reasonably fast computer with an adequate amount of RAM. My older computers can handle 12Mpx NEFs from Nikon dSLRs, but struggle with NEX-7 files.