Yep, but don't go asking around for them. It's really easy to install CFW, as long as you dont have the latest Sony firmware. If you do, just wait for a downgrader to come out. Then you just need to downgrade to a firmware that a CFW installer can use (5.50, 6.39, etc.). Make sure you pick your CFW out before you start, as each one has its ups and downs to installing.
Yes like Gibby said you can get free games however asking on sites such as this will most likely get you banned or given a warning. Each PSP is different when coming to installing custom firmware. Me as a person would always get the latest version of custom firmware as long as it is stable a good place to start is YouTube there are many tutorials on there. PS need any help add me on Skype @ SSCWOSH or inbox me