To clarify Spiff's post, it's Cedric and Omar from ATDI; the other three members of ATDI are now the principal members of Sparta. Sparta sounds a hell of a lot more like ATDI than TMV does, though; TMV goes in a completely different direction.

And I honestly like Cedric's voice a lot. I find him a lot more tolerable a vocalist than, say, Geddy Lee (who also fronts a prog band and has a similar vocal range).