Holiday In Goa - Cannabis Help!

Hi,

I've booked a holiday in Goa for the middle of March. I was wondering have any smokers on the boards been to Goa, and what's it like for buying hash/grass. I know some people wouldn't have any problems buying smoke, but I'm getting older now and most people crap themselves when I start asking questions (they either think I'm a cop, or I've gone almost a day without a smoke and I'm starting to act a little manic). I know Goa is a real hippy mecca, but better to be prepared.
Who is the easiest and best to be buying from. I don't want to be waiting down too many dark alleys with my girlfriend, and don't want to get ripped off either.
What should I be going for, I know that the hash is real good there, but if anyone has personal experience I'd like to hear.

Thanks in advance for any replies.