Poloniex - Buy Currencies

Hi i need your help, i would like to know if i can buy certain currencies on poloniex with ZAR (South african rand)
Im fairly new to mining , i would also like to know where i can find info on currencies with a possible future growth to invest in ect.

You might need to find your fellow local crypto currency people. Have you looked at localbitcoins.com ? Also, check out meetup.com for bitcoin meet-ups.