I am going to start building my own desktop pc in a few weeks.
Starting with a barebones "Shuttle" kit from newegg.com.

I am just beginning to research Lenox operating Systems as a way to
get away from Windows and try something new.

I can get a Ubuntu disc from Amazon.com for less the $15 dollars,
and thought that would be the best way for me to begin...

Everything will be new to me (building the system) so adding Ubuntu
to the mess should really heighten my experience.... (VBG)

Does anyone think this is a bad idea?

Last Questions: there is Ubuntu and there is Kubuntu...

How do they compare??
Which do you recommend?