How do I take a screenshot of my Android phone?

I recently got myself an HTC Magic running Android and wondered if there’s a way I can take a screenshot of what’s running on the display. My previous phone was a Windows Smartphone and I had an application that did that for me. Is there a simple way to do this on my Android?

How can I connect to my Wifi network?

I’m trying to connect my laptop to my Wifi network which currently has a number of computers already connected. I’ve supplied the WEP key it requires but all I get on this laptop is “Acquiring networking address” and it never actually connects. Is my laptop’s WiFi broken?