Hi everyone. I've read so many posts and want to take the plunge to getting a new iMac but looking for a little advice first. I'm a home transcriptionist so spend a lot of time looking at my screen and it will be on wifi, not hard wired. I'm also getting more into amateur photography and starting to take senior pics for people. I need storage for my all my pics as they are big raw files for editing and think the 4 or 5K would be so beautiful to work on for pics. I will need to run parallels as my transcription program is windows based. Right now I have a mid 2010 21" iMac but it is so incredibly slow I can hardly stand it anymore and it is messing up my work performance. Speed is very important. I have been leaning towards the 27" 5K with SSD but just don't know. I'd appreciate any advice. Thanks!