In response to this:
http://www.woodus.com/forums/index.php?showtopic=30162
I've developed a script that allows you to capture a region of the screen, send it to an OCR(Tesseract in this case), and optionaly send the scraped text to Google Translate. The latter option for the moment is more or less useless. I've only included it to see if I could do it, and in the hope that it may one day be useful. At some point I might include other online translators, but that is in the distant future.
For now, I'd like to concentrate on Tesseract's precision. Not so much it's ability to recogni