I'm looking at buy a couple of my g-kids Guitar Hero for a PS2. I found packages, i.e., game plus one guitar, as well as several stand alone guitars, I need to buy an extra guitar. There seems to be both wired and wireless guitars. I don't game and am at a complete loss as to what to buy and would appreciate any advise. As for versions my preference would be for Classic 60s and early 70s but it's not for me. First, what is the best version to buy, the kids are 16 and 10 years old? What should I look for in the second guitar? Is wired or wireless better? Trouble free, reliable, is most important. Anything in particular I should be aware of or look for? Thanks in advance.