I think one of the reasons you're not getting replies is that it's such a broad question. There's more than one type of DBA. For starters when you think about becoming a DBA, are you considering becoming a Development DBA, a Production DBA, or maybe a hybrid? What interests you the most?

Have a look here[/url], at these articles by Brent Ozar- the main one and the ones linked to below it, including this one[/url].

That should help for starters. I can't advise about networking, I'm afraid, although I'm sure it's a really interesting career path. I think both careers can be equally well-paid and challenging, with good opportunities for progression and the chance to work for yourself one day if you want to.