software wise, id am a personal fan of HKN just as you used to. they took out the requirement that you download the latest release every 120 days or so which I think is an improvement. I tend to lean more to scripts than predefined customations, but if it works for you and it works well, then by all means. I was going to say something about input director for multiple machines, but that won't be the case for you

hardware wise, the 920 at stock is fine for 5boxing. I would want more ram that what you have especially if you are going to the trouble of a ssd drive