60Hz switch is a must! There have been some problems with 60Hz mod and RGB cables though.
The Saturn has great RGB output BTW. I hook up my Saturn to a 1084 monitor, its a perfect match. Many games support Tate mode so it is easy to set up the monitor for those games since the monitor is compact and stable also on its side.
Older games just look weird on our 52" LCD IMHO, on the 1084 its like having an arcade game in your home, especially with those Sega arcade games such as OutRun.