I found this site because the Latin program I just got in works in conjunction with this software. Its complicated but I had to add my latin cd to this software and do a bunch of stuff to make it work for these cool interactive flash cards. I did download spanish for free though and the program was free, I did not have to pay for the download on the website. I will warn you about one thing, the free latin on this website is NOT the classical pronunciation, its that other kind, which I know nothing about, so if your teaching classical pronunciation then the latin wont work for you. http://www.byki.com/fls/FLS_ga11.html?engine=adwords!9236&keyword=[before+you+know+it]&match_type=
This sight is very interactive, I've been useing it for Spansh but a variety of Langs. are offered. /www.livemocha.com/ Blessings