Hi (again) Vanessa!
A good one to use is soapcalc9 - it is a little more complex than MMS but if you take the time to read how it works and read also the 'soap qualities' section it should make sense. The link: http://www.soapcalc.com/calc/soapcalcWP.asp
I have a programme called Soapmaker which I purchased from Heirloom Body Care online here in NSW. There is a Canadian online home site from which you can download a 1 month free trial - it is awesome and the Professional programme has an ingredient and finished product inventory which is wonderful to keep track of things. Heirloom have purchased a number of pre-paid coupons from the home site and the cost via them is better than buying directly from the Canadian site with the way the Aussie $ is currently.
Here is the Canadian link which offers the free trial. I make all my soap batches using this now. http://www.soapmaker.ca/
Your recipe when run through soapcalc9 is quite balanced....a little on the soft side but soapcalc doesn't really take into account how hard olive oil soaps get!!! With soapmaker it is quite a hard, creamy lathering bar with nice moisturising qualities. I personally would drop my sunflower by 50g and up the Coconut oil by the same for a little more fluffy lather - but I am a lather ho!!!