I just installed a new SSD on my MacBook Pro 2011 model and installed Mountain Lion on it. After installing just a few apps, I now show the 512GB drive offering only 250GB free. But then I checked using Daisy Disk and it only shows 65GB used. Thinking it was Daisy Disk I went to Finder and did right click Get Info on each of the folders and they showed only about 65GB total.
Where did the 190 GB go?
Here's a screenshot to show what I'm talking about.
MacBook Pro (15-inch Early 2011), Mac OS X (10.7.3)