For Destop Managers test out an Iistall of Antix Linux..
Antix comes with an assortment of about a dozen desktop managers.. If you want to test out desktop managers Antix is probably the way to do it...
I just installed Antix in a spare notebook.. It's interesting and a little bit complicated and strange.. It's not like any other Linux OS.. Install Antix on a spare hard drive, and test it out.. It seems to be a good OS, but in the first run of configuring and tests I still can't figure out how to get it net-connected.. It might be a good OS for the Linux wise newbie..? Antix seems to be all about security.. Seems its creators rewrote Linux from the bottom up.. Some people worked hard and long to create Antix for us... I'll test it for a few days to see what good it is..
youtube.com/results?search_query=antix+demo