I would doubt that as WebDriver is more for UI testing of web application. More over if you want to use GET, POST etc then I would suggest to use API like - HTMLUNIT
By the end of selenium video 2, I was successfully able to create a test suite for multiple browsers. I must say "Thanks for the very informative tutorial".
One more question fur ya,
Is this possible that the other member of the team can access my test suite? If so, can you please let me know of the process?