You can easily run Tiger. I bought mine for $ 129.00 but I am sure you can shop around & get a little better price now. http://docs.info.apple.com/article.html?artnum=301748 Will tell you how to move your itunes to an external drive. --- James Paul Manley Albuquerque, New Mexico Jim Manley's Photoshop Elements Page http://www.geocities.com/jim_p_manley/index.html On Dec 20, 2005, at 12:22 PM, dapper dan wrote: > i am running mac os 10.2.8 on my 867 powerbook g4.can i put a newer > os on my hard drive and what is the cost of this and where do i > purchase it?i would like to run something as new as possible since > i want to run pro tools mbox onto the book. > > also,i s there anything complicated about dumping my itunes music > collection onto an external portable hard drive? > > and finally,is it possible and worthwhile moneywise to install a > faster processor in my book or better to just look toward buying a > new one?