[MindD4rk]

Here is a good resource to check speed in which a given password can be cracked:
http://random-ize.com/how-long-to-hack-pass/

Most complex 8 character passwords can be cracked in less than 24 days using a consumer grade gear.

Best way to create a secure password is focus on its length, not necessarily the complexity. For example, an all lower case 13 character password will take 28 years to crack...