Being fairly new to all this too, I would suggest checking out E-Bay and PSA listings to see what excellent, nr-mt cards (which your cards look like to me) go for?
I can tell you one thing, the price difference between number 5-6 graded cards and 8-9, and especially 10 graded cards is huge so do your homework first before giving them away.
Also, don't forget a lot of reprints exist which sell way cheaper than originals so be careful of that too.
Here is an e-bay link to help you get started but don't use this as your only avenue.
http://www.ebay.com/sch/i.html?_odkw...rds&_sacat=212