bdp24 above has some great recommendations,
I would add to his list:
-Brian Wilson
-10cc (Godley-Creme and Stewart/Gouldman)
-Electric Light Orchestra (Jeff Lynne)
-Harry Nilsson
-Todd Rundgren
-Eric Woolfson - Alan Parsons Project
I would add to his list:
-Brian Wilson
-10cc (Godley-Creme and Stewart/Gouldman)
-Electric Light Orchestra (Jeff Lynne)
-Harry Nilsson
-Todd Rundgren
-Eric Woolfson - Alan Parsons Project