@mandude: Scotland and Ireland share a lot of Celtic ancestor. The thing is Mac/Mc is Gaelic for son of. When people say Irish(Language) they mean Irish Gaelic. But there is also Scottish Gaelic. In this case your name is what Clan you belong to. If you look at a list of Irish Clans hardly any of them have Mac/Mc. Looking at the Scottish Clans on the other hand most of them are Mac/Mc. The Mac/Mc is much more prevalent among the Scots.
The main point I was making though was that there is some silly notion that Mac is Scottish and Mc is Irish which is just completely wrong.
Sadly the controllers with plug in kits don't work with the pc as easily. Because it is a wireless controller you'll need to do what MrFlacon suggested and buy a Xbox 360 Wireless Gaming Receiver. Or you could buy a wired controller.
The first one is my favorite, I feel it had the best story and very strong antagonist. Plus the music and atmosphere was so good.
Also one of the main aspects to these games is the fact you take this one character that you create through all the games the decision you make go with you, people telling you to skip one game is bad advice in my opinion.