Airport Instead Of A Standard Wireless Router?

[MisterMan]

HI. I am getting my first internet line ever. Been in thailand for a decade and only had CDMA and left home before ADSL!

So I have a mac book and I am getting 3bb. Questions:

1. INstead of a wireless router should i get the airport?

2. Can my roomate use it on a pc if it is a newer PC?

3. If he uses it can he then access my harddrive?

4. If not can I still give him access to my printer?

What is the advantage of the Extreme Airport? Dont think I need it for the 2 of us.

Thanks!