Still an advantage to installing game files on separate drive from system drive with SSD?

I'd been going with the strategy of installing game files - talking games like Battlefield, not solitaire - on a separate HDD from the main drive so the one drive didn't have to do all the work.

Is this still valid when running SSD's? Still better to distribute the workload between the drives instead of making one do all the work?

Running a Core2 Quad 9550, Windows 7, 8 gigs ram.