Create Login for my site exactly like wmpudev Login? (example --> http://bit.ly/WMPUDevLogin)

I love the simple clean login to wmpudev. I want to create something just like it and integrate to process to an HTML form (that's how we create User Accounts on our site).

Literally want it to look more or less like this:
http://bit.ly/WMPUDevLogin

Any way to easily do this?