Migrating Site / SubSite / Content and Content Deployment Tool from Chris O' Brien

If you came across situation like these :
* I just need to move this document library from A to B
* I just need to move these selected files (e.g. master page, page layouts, CSS
etc.) from A to B
* I just need to move this web from A to B
* I just need to move this site collection from A to B
* I just need to move these 20 list items from A to B

Then Chris O'Brien is here for rescue.
I know there are other 2 methods to accomplish the same task :

(1) Using Sharepoint designer tool to Backup and restore the site
(2) Stsadm.exe command line tool

The only thing i dint like about these two methods is the limitation of what you can migrate.
Sharepoint designer allows site migration of size with 25 MB or below. Also Both methods
want you to create an empty site before export of data.
Then I found a very handy tool for migrating my stuff from one site collection to another. This
tool designed by Chris O' Brien is so Cool, The migration of Stuff becomes so so easy. It is
a must see tool for all SharePoint Developer. The new and better 1.1 version is released
in CodePlex , This time he has Provided the Code of the Content Deployment Wizard as
well.
You Can Learn about the Product Here
You can learn on product operation Here
You can directly download the latest Version of Product as well as the source code Here

Job done with little pain ;)