I've tried Screen Desktop OCR... it seems like a Kleptomania clone to me. There are about 3-4 programs that claim to do the same thing and do it almost exactly the same way! (Even down to the program icon... Top OCR is another name that sounds familiar, but I could be wrong) The problem is, they dont seem very reliable. They do great with text in a window, but pictures must need to be perfect cause I've never gotten a picture to work. I tried them on AutoCAD and got a bunch of gibberish. I don't know, they just need more refinement or something.
I like ABBYY's claim to be able to use a digital camera as a scanner, that's awesome... but the price tag is, needless to say, pricey!