Windows server 2010 Direct Access installation and configuration

Hi all,

Im implementing direct access with windows server 2010, i did direct access with windows server 2008 R2 and UAG before but now im confused about some configurations, i used to use the below Links in the UAG and windows server 2008 R2 implementation 

http://blog.concurrency.com/infrastructure/uag-sp1-directaccess-ip-addressing-the-server/

http://www.thomasmaurer.ch/2011/06/directaccess-for-smb-and-lab-environments-%E2%80%93-design-step-by-step-and-troubleshooting-guide/

these both was good and straight forward links.

Now with 2012 i want to get advantage of using one public IP and use NAT also i want to have high available DA with 2 DA servers, also i have windows 7 users so can i use the same above 2 links or is there in change in the setup and server network configuration?

Thanks

Tarek Khairy