yea, i figured. im at 19 right now... so i should be encountering most rares i would think? idk

Do the 'swirling leaves' have any meaning? Is that an area where there are Pokemon? I'm new to this. Also, is there a way to trade Pokemon yet?

yes and no

There is a Snorlax somewhere in the vicinity - I've walked a 1000 yard radius but it won't appear - do I need something special for Snorlax?

wow so thats how u get him

Omfg that was perfect

Swirling grass means pokemon will be around there within who knows how far a radius but it's an indication of near by pokemon

This.
Doesnt mean it's in that particular part where grass moves

do I get the razzberries from pokestops as well?

didn't find any so far...

and where do you get the 10k eggs or regular eggs from?

All from pokestopes, you need to be higher than a certain lvl. I think you can get both 10k eggs and razz at lvl 9ish