Take a look at You must login or register to view this content.. Also, many of those have not been updated so just look for the latest updated one on the forum.
It depends on what you want. If you just want a simple CFW that allows back up managers use Kmeaw. If you want somthing hardcore go rebug 3.55.2. If you want to go copy almost every game in your local retail store and pirate them they you should get a dongle such as a Cobra or True Blue dongle.
Oh and if you want to just host MW2 challenge lobbies use the geohot jailbreak as it doesnt even need to install. (oh but do not use the geohot jailbreak if you have a 1st gen ps3, like if it has 4 USB ports
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