My 30th was back in May - to be honest, I wasn't dealing well with it (no longer twenty-something-cute etc., should I have gotten married?) ... so I went to Calgary for 8 days to see family and friends, and had SUCH a good time whooping it up ... went to for dinner alomost every night (and cocktails of course!). Decided not to prise the porcleian god, so I just paced myself ... and boogied all night too!
A different take - a friend just had her 30th and she threw a black-tie formal dance! About 100 people - just some nibblies and cash bar - it was terrific! I personally wish I had done something like that
Good luck!!!