When I installed openSUSE 11 I did the KDE 4 desktop environment. Afterwards I decided to go to 3.5 and fool around with 4 when it isn’t really critical.
In KDE 4 I have the option from the main menu to Suspend to Ram and Suspend to Disk, (which both work!) but in KDE 3.5 I do not have those options.
The abilities to do this on this laptop is one thing that puts openSUSE above all other distros