I was a big fan of the first progressive wave but I had pretty much lost touch with the genre until I saw this thread a week or so ago. I sampled several of the bands mentioned and I found many of them to not suit my taste at all. To each his own, right? But the thread did send me on a quest to find some good modern progressive rock.
The search took me to iTunes Radio and I found "Progman" under the classic rock tab on iTunes Radio. I've listened to it for a few hours now and I've heard some really good stuff.
Give Progman a try. It's free if you have iTunes and it's also available as a streaming audio internet station at
http://www.laut.fm/progman. but the website is in German.