Nice set up and welcome.
Comodo's Cleaning Essentials now version 2.4 (can be updated within program)
Suggest Bitdefender trafficlight for web filter for Chrome as additional security layer, scriptno and maybe Sandboxie free.
Overall, you have a good config. I suggest adding these:
Web Of Trust (WOT): http://mywot.com
ESET Online Scanner: http://www.eset.com/us/online-scanner/
EMET: http://support.microsoft.com/kb/2458544
SpywareBlaster: http://filehippo.com/download_spywareblaster/
I wouldn't say you need to add anything, unless you're interested with using EMET and how it works, and/or using a web filter such as BitDefender TrafficLight or Panda URL Filter.
Other-than that, it looks like you know what you're doing.