Definitely.
However, I worked with WMM for about 3 years, and to be honest I achieved some mediocre results with it - nothing great, mind you, but for what I was doing at the time, it was good enough. If you're just messing around at this point, it would probably be more beneficial to learn about basic techniques in WMM before upgrading to somethiing - that new program will prove to be way more complicated.
Abe, don't knock it too much - I remember Slandis was once using it to compress his edits.
Anyway, what are the specs of your comp? Are you working with HD footage?