None of the modern prog rock bands (Porcupine Tree, Transatlantic, Flower Kings, Spock's Beard, new Opeth, etc.) and I gave them all plenty of chances. It's weird, because I grew up on classic prog, so I should like it, but none of them work for me. Either it's the the soft & happy vocals and the "happy instrumentation" that turn me off, or I just find it plain boring.
If it's modern prog, it has to have a strong metal element to draw me in (DT, Symphony X, Riverside's ADHD).