Can anybody help me understand what software and hardware I need to use the Garritan Personal Orchestra, GPO? I just can not get my brain to figure out how the GPO is used. I am not a composer. I have knowledge of music, I can read music, play guitar and some keyboard. I want to buy GPO and play with it to try composing and arranging some orchestral music. But I just do not get how that is done. Do I somehow load GPO into a MIDI keyboard? Do I drag and drop GPO instruments into my Sony ACID Pro 6 software? Do I buy Sibelius 5 software and use GPO as a plugin for Sibelius 5? These questions likely seem ridiculously simple to those of use composing music with GPO, but for many people like me it seems so mysterious of a process. I am hoping someone can explain this in way ordinary folk can understand. I hear beautiful music from the sample GPO songs, but I do not understand what software and hardware and what process goes into creating that? I have a nice dual core PC with 4GB ram, plenty of hard drive space, Sony ACID Pro 6.0, a MIDI keyboard. What else do I need?