The highlight my my trip last year was Destino day time party. In my opinion, whatever dj is playing, you will have a good time. The location is brilliant, the club/hotel is beautiful. Solomun plays here, and Guy Garber, both will be good parties.
Stick to buses when possible if you want to save a bit of money. Taxi from airport to San An €40 each way. We bused after our first initial taxi.
There is something for everyone on the island. This forum is full of useful info. I spent hours reading up on here before I left. There is a thread on tips in Ibiza, I'm sure some of the older/experienced heads will be able to give you more info.
Have a good trip and give me a heads up when there