Come join us on Guild Wars Raven. There are three different games (chapters) and one expansion. Prophecies is the first, where you start in Pre Searing, which is really to teach you what it's all about. When you leave Pre, the game really starts. Many people don't like Pre, they find it boring, but many love it and have a permanent Pre Searing character who never leaves.
The second chapter is Factions. Not the favourite game for most though once you leave the dreadful city, it is lovely.
Nightfall is the third. A lot of people start with this one as you can get heroes pretty quickly, but I personally think it's better to start in Prophecies, mainly to follow the storyline.
Eye of the North is the most recent expansion.
You can really play each chapter as a stand alone game, but once you're hooked you will want to get them all.

Of course you have to buy each one, but that's it. There is no monthly charge and no cash shop.
There are often specials in the games shops, or you can buy the client directly through the game. (Cheaper to buy from a shop, especially now with our weak dollar.)
The TOG alliance is made up of 5 guilds. People join the one that has people from their own time zone but we all chat in alliance chat and we use Team Speak a lot. For Aussies the guild name is Temple.
I hope you'll give it a try. You will be most welcome
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You can also get a free trial
http://www.guildwars.com/freetrial/