mack - 11:08 am on Jan 9, 2011 (gmt 0)
Hi there, first of all welcome to WebmasterWorld.
As has been pointed out your website will reflect upon the company, in this case your martial arts club. Because of this it is important that it is done right.
My advise for anyone interested in learning about web development is go for it, but don't just dive in at the deep end. Build another site and use it as a learning experiment. No ones first attempt is going to be great, but it does help you gain experience.
Think of a hobby and build a site about it. Learn the basics before you try and get advanced. Walk before you run.
Regarding software. There are quite a lot of "what you see is what you get" html editors for the Mac, but honestly. Try and learn html. This prospect scares a lot of people, but I have personally taught someone to use hand coded html in under a week.
It's a learning process that will put you in good standing for any other projects you undertake.