Are you asking for info so you can mod it yourself, or are you looking to find someone who can mod if for you? If it's the former I know just about everything you would need to know for the two most common mods: Region switch, and video upgrade. Though I have personally never done a region mod yet (due to the fact that my local electronics store has none of the necessary parts) I know how it works and how to construct it. I know plenty about adding RGB out/component video/s-video. I also know various other tidbits, such as making a pce to tg-16 controller adapter, a tg-16 to pce controller adapter, how to replace bad caps, how to calibrate the lens, etc. I just need to know what you want to know. If it's the latter, you could try nat, though I do believe he is taking a break from system modding. I could probably also do it though I would need to know which mod you want.