Welcome to the club! I bought my first Boxster ('99 2.5l) as a 25th birthday gift to myself. It still stands as the best birthday gift that I've ever received, but don't tell my family/wife about that.
I eventually sold that car and how 10+ years later I'm back in a 986 ('03 3.2l), and I continue to love the experience!
Be sure to maintain a good rainy day fund because Porsche parts are never cheap (even if you can save on the labor via DYI). Also on that note, don't be shy about attempting some DYI maintenance and upgrading! Get the Pelican Parts DIY book for starters.
Happy Motoring!