rango - 6:53 am on May 24, 2013 (gmt 0)
htdawg, your solution seems OK to me. As long as the translated index pages are done by humans then they are valid content. All the links from there go to Google Translate so it's not a duplicate content issue. Nofollow them just to be clear.
What would be bad (and what I think tedster is referring to) is if you decided to auto-translate the content, save it and then serve it up on your domain. That would not be a good idea due to the very low quality of the content. It often just looks like automatically spun spam content.
The only thing is you may not actually as much traffic as you would like on those translated index pages. Since they are just a single page there's really not a very strong signal to the bots that you are offering much value. You might want to expand your efforts to at least tackle a dozen or so of your top level pages.