What are your favorite prog rock/metal bands?

not really into prog metal seen Dream Theatre,they were great saw them in San Francisco,there were TV sets on stage and lava lamps,along with a sweet lightshow,the concert madem y ears almost bleed!! :} Prog Rock now: "YES" with Ozeric Tentacles in 2nd very underrated band imagine Monty python meets pink floyd only more modern :} C/D:Hidden step and arborescience and strangitude "Worthy!!!