It took me 2 weeks from hearing about bitcoin to owning it.
2 months for me... one to research it thoroughly to find out it wasn't a scam, and another to figure out how to actually obtain some, watching helplessly as the price went from $15 to over $60.
Yeah, 2 months is about average to thoroughly research Bitcoin. In fact, I'm still learning tidbits here and there.
I remember calling Gavin and theymos at least a couple of times to ask questions. Then wasting another month throwing out low ball bids on OTC that were laughable (embarrassingly low). Finally I said fuck it and plowed into mtgox.
it took me ~2-3 weeks as well, is this typical? probably not,
most poeple will first be aware of it but not put much thought into it, one day they will hear about it again, do some recreash, think about buying in, forget about it, repeat, actually start saving money to buy, watch market for weeks or months ( everyone thinks they can buy the low if they only sit there long enough ) and then finally buy when its clear that "its going UP!", these poeple comes in waves and they all buy at pretty much the same time, they can't help it, its in there nature, sheeple.