In my recently aquired addiction for all things Guitar Hero (‘GH’ for the true fans) related, I have come across an excellent free GH clone called Frets on Fire. It does not have the flashiness of the GH series, or the battle modes etc, but if you are thirsting for some guitar action on the pc, then this is definitely it. The best thing of all, is that you can just use the humble PC keyboard to do it! You can download a lot of free songs, or convert your own with their editor so there is no end to the choices of music, which is a definite plus of the GH series, where you are restricted to their music selection, with the option of purchasing a few select song packs from their site. Ive shown it to a few people and they are hooked too!