Graz-ias!

I am Nathan, and I make stupid puns.  We all have our flaws.  I'm 28, American, and head over heels in love with an Austrian girl.  I will be moving to Graz on April 18th.  I am an artist, poet, and musician.  I taught English for a while in Russia and hated it.  Not Russia, the job.  I guess I really just wanted to introduce myself!  My first big question is...who wants to get a beer and have a chat?!  My second big question is this:  How can I stay in Austria?  After arriving in April I will only have about 70 days left on my Schengen zone visa.  I don't intend to leave, but I'd rather not stay illegally since the potential consequences might keep me out of the country for much longer than 90 days.  Marriage, employment, student visas?  It's a little early to marry...I don't want to teach English...I could see myself going back to school (I already have half of an American Master's degree in Poetry).  Any help would be hot.  Thanks for your time!  Hope to hear from you!