About a year and an half ago I tried windsurfing on school camp and really enjoyed it. Now I would like to get lessons and would like to know about some of the different places that you can get lessons (in and out of adelaide as I live in the country), how much do they cost, what will I need to bring, are there any classes, what is better getting a one on one lesson or going to a group lesson, should I even brother with lessons, can I hire equipment and where, how much does equipment (secondhand and brand new) cost and where can I get the equipment, what equipment do I need before I start windsurfing.

Speak to Pete or Josh @ Onboard in Adelaide 08 8294 3866. They can put you onto lessons with Matt & set you up with gear when you progress.

The Onboard website has plenty of info on gear and locations to sail:
http://www.onboard.com.au/sailboardingtipsandinfolocations/

Welcome to the forum Sarah. As Kimba recommended, get some lessons (ie: group lessons). I went though Matt Stringer's school (WindSUP) a few years ago. The idea is to fast track the beginner phase without the hassle of buying beginner equipment (and this is the phase where people either take it up or decide it's not for them). After a few lessons, you'll be able to look at buying intermediate gear and sailing on a lake or in the ocean by yourself. So, give Matt Stringer (WindSUP) a ring on 0417 858641 and book your first lesson. He teaches at Tiranna Way in West Lakes. The only thing Matt would like you to bring for your first lesson is foot protection (some old runners will do). This is in the event you tread on something sharp in the water. Good luck