There are many password generators out there but this is my take on it. In the vein of the XKCD recommendation on entropy, I'm using a list of English words, a symbol, and a number to make a password. You can turn off the symbols or numbers. Use the slider to adjust the length of the password. You can pick your own capitalization as you desire.
Here is a sample password:
The source code for this is freely available in javascript, just view source on this page to see what I am doing.