Hi, I have a PowerBook G4, 1.67 GHz, 2 GB SDRAM that I bought in 2006. I love it and use it constantly as my primary machine, so it's running about 8 hours/day, sometimes more. I've had few problems through the years, other than typical problems as a computer ages: my hard drive crashed, new batteries and power cords, etc. However, I am becoming increasingly frustrated with how slow the computer is for watching videos online. I'm teaching a blogging class, and am constantly checking out videos, and the video is either constantly interrupted or won't run at all. I'm not very technically literate, but does this have something to do with the processor? (I don't think it's the internet itself, since videos run fine on other machines.) Can this be upgraded, or is it time to purchase a new MacBook Pro? I also use programs such as InDesign and PhotoShop frequently, and run WordPress. Perhaps I'm just looking for a reason to buy a new MacBook Pro... Thanks for your advice!