The event is off the hook. The parties begin on Thursday and last until the evening on Sunday. The highlight is the "Ultra Music Festival" on Saturday. The official lineup has not been finalized, but last year included PVD, Tiesto, Oakie, and a live show from the wonderful blokes of "Underworld". The show was simply awesome. I think last year the event topped 50,000, so get your tickets now. Try....www.groovetickets.com
Other than that, there are events going on at Space Miami, Opium Gardens, and Crobar. Luckily....the above mentioned website will also sell tix to just about every important event. The events will really start popping up in February.
Any hotel on Ocean drive is suffiecient. Also check www.wmc.com
for additional label listings as most will play sets outdoors near hotels & pools.
It isn't Ibiza (what is ????), but it will get you in the mood. Great tunes, beautiful people. Also check the local radio station site......www.party931.com
. They will have updates for everything.
I hope this helps. I have learned so much about Ibiza on this site, the least I can do is share something about the States.