I hope you do go out and get yourself a betta. They have tons of personality and they're beautiful to look at.
We'll see if you can stick to just one after you have it for a while. I only wanted one and I'm up to 6 betta tanks LOL.
Everone else covered the basics so I'll just add that when you pick out decorations for your tank, stick to soft ones with no sharp edges (leafy silk plant and a little cave ought to do it). Their fins are very delicate and can tear on sharp or rough objects.
Welcome to the forum.