10 years ago, at 39, I took up bass as a hobby with no previous musical experience other than a yr of jr high band (sax). I asked for advice, received good suggestions from my old buds who play guitar, and ingnored it, thereby wasting a lot of cash. I have wasted a lot of cash on gear since then as well, but that's another story

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My 02: you don't even know what you like yet, so buy the industry standard, a Fender or Squier jazz or P-bass. You will always have a use for this, possibly eventually as a backup, although if it's properly set up it'll be fine for anything. If you don't like it, it will sell easily, and there are always used ones available.
The bass is more important than the amp initially, but the better the amp the better you'll sound (even as a beginner) and that will help motivate you to practice. Buy used (TB is a good source, and check eBay listings to get an idea of market value) and get as big and powerful a combo amp as you can afford. About 150 or 200 will be required for something half decent.
I never thought I'd play anywhere but my living room and laughed at my teacher (get one if you can) when he suggested I learn to play standing for "when you're gonna play out"......but a few years later I began playing in a local bar band and love it........it beats the crap outta golf

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