How much do you weigh?

Not sure but I don't think a Naish Grand Prix is a beginner board. It sounds like a race board, just from the name itself.

You are better off looking at something like a Starboard Go as mentioned on the other thread you started. Its best to keep it all together in one thread too. Look at getting a Go that has a centre fin. That will help you get forward momentum.

In regards to your sail, ditch the cammed sail. It will make life hard.

Where are you located? This could have a big impact on what sort of gear you should buy.

WillPower said...
[br>>>> I am quite a good learner and i have got amazing balance so i was wondering if i would just be able to stand up on it because really thats all i need, i can learn the rest. Any comments are greatly appreciated thanks

Windsurfing isn't as simple as it looks, if you've got yachting experience and know how the wind works, you could be right. But plenty of important stuff isn't very intuitive. Starting off in very light winds is the easiest to get going, but can also teach you bad habits, because it's so easy to overpower the sail.
An instructor can point out these errors as you do them.

get a small freestyle board, youll love it