There's a fairly flexible computerized flash card program called Before You Know It (BYKI). It has several different review options, as well as sound. There is a free version that contains several dozen example flash cards, including Latin. I didn't see any Greek. Supposedly, if you purchase the full version, you can make your own flashcard sets and share them with others, but I haven't tried it yet.
I am making an answer key for White's, here:
http://www.rustymason.com/edu/lang/gree ... k_key.html
but my progress is very slow. At the heading of each chapter, there is a link for the vocabulary to date. Here's an example file:
http://www.rustymason.com/edu/lang/gree ... b_010.html
This is probably not what you're looking for, but I thought I'd just tell you about it. If you cannot read the greek characters or if you find any mistakes I'd really appreciate knowing so I can fix 'em.