Even after upgrading to a quad-core processor and maxing out RAM (4 GB) my system still reacts relatively slowly, especially when refreshing the album list or switching songs.

I currently have an 80 GB drive for windows XP Pro and EJukebox, and a 3 TB drive for music. Will installing a 128 GB SSD drive make a difference? They're getting cheaper ($90).

Or ... should I bite the bullet and upgrade to a newer machine running windows 7 or 8?