So I'm in the market for a router. I have an Airport Express already. The setup is a PB, iBook, and PowerMac. The PowerMac has no Airport card so it'll be wired. The laptops I assume will be wireless and possibly wired at times too. I don't want to spend a ton of money and was turned off by the price of the Airport Extreme Base Station. Also I need to be able to connect via VPN to my work's Windows network. What different kinds of setups could I go for? I was thinking of just getting a wired router and for wireless plugging my Airport Express into it. But then I was thinking maybe I can use the Express to extend the range of my network instead.