After doing some research, it looks like I have a few option to get OSX back onto the computer following an SSD upgrade. From what I'm following, I can use the OSX Internet Recovery system to install the default OSX version that came with the iMac originally, or I can create a bootable USB install disk. I don't think I have the original install disk that came with the computer. My question is should I use the internet recovery system and then upgrade to El Capitan? Or is it smarter to create a USB boot disk? I'd rather not create the boot disk if I don't need to, I'm perfectly content sitting through two installations of OSX. Would one have an advantage over another? Thanks in advance.