Alfred Workflows to Create a New Item in Google Drive. There's one for Google Accounts and one for Google Apps Accounts.
There's some customization needed for the Google Apps workflow:
Double click on the URLs on the right side and replace YOURDOMAIN with your domain (including .com or whatever it ends with).
Note: I was unable to figure out how to create a new file through a URL. If you know how, please let me know.
See the blog post for further details.