...especially if you like the "Trick of the Tail" and "Wind & Wuthering" albums...you should check out the band Big Big Train, and these two albums:
The Difference Machine
http://www.amazon.com/Difference-Machine-2010-Reissue-Train/dp/B00367BR0QThe Underfall Yard
http://www.amazon.com/Underfall-Yard-Big-Train/dp/B002ZIABE0This is the "complicated songs with lots of guitars and vocals" music you're looking for, but not complicated just for the sake of being clever, complicated in the same way that Genesis is "complicated."
Very melodic. Lots of Steve Hackett-style guitar with touches of the David Gilmour side of Floyd, NOT the Roger Waters side.
The vocalist on "Difference Machine" is Sean Filkins, replaced by David Longdon on "The Underfall Yard"...the difference being that they only sounded MORE like Genesis when Longdon came on board. As a matter of fact, when Phil Collins left Genesis, and Rutherford/Banks recorded the final studio album "Calling All Stations" with vocalist Ray Wilson, Longdon was one of the people who made the final cut auditions for that spot.
I have a mix CD in the car made up of half of each album. I've played this CD more than any other in the last two months.
:toast:
ON EDIT:
I forgot the best part! On the Big Big Train Website, you can download the entire 23 minute title track from "The Underfall Yard" for free:
http://www.bigbigtrain.com/Look for the red "Free Download" button on the right. Enjoy!