First, LTE is probably never gonna do anything else, unfortunately But yeah, the DT guys could do Layla pretty wickedly and add some sections/solos and stuff......maybe Petrucci or Rudess could play the vocal melody! They've done so many cover songs though! Pick a classic rock band and they've probably covered them. Opeth HAS done an Iron Maiden cover, "Remember Tomorrow". They are one of their biggest influences, especially if you don't count black/death metal bands like Morbid Angel and Celtic Frost. This is included as a bonus track on the re-release of "My Arms, Your Hearse". They do an awesome job of the track, and Akerfeldt does a pretty good job of the high vocals though they are kinda out of his range. The solos are great of course. Get the album (my personal fav Opeth album), or download the track...its on Winmx for sure. I would like to see Dream Theater do some Transatlantic songs though, that would be sweet! B)