I’m running a similar setup. The 5770 works and no problem running FCPX or Motion. The card has a single DVI output and (I think) two mini display outputs. I’m using a mini display to DVI adapter for my second display.
Install the application in your Applications folder. Then run the default database installer. That’s it. The default database will be set up and ready to go.
Both tools are pretty solid. However I’ve yet to test under Lion. I plan to test both apps today once Lion hits.
Secondly, you guys familiar with my aspectRatio app? It’s been free since I released it four or five years ago. My plan for the new tools is to charge less than $5.00 per. Probably just a few bucks. In all seriousness these projects take lots of time and I don’t think charging a small fee is out of line. I hope everyone is ok with this ;).