There's a <A HREF="http://www.storagereview.com/articles/200302/200302276Y200x0_1.html" target="_new">recent article</A> by StorageReview which compares the Maxtor DM+9 and WD2000JB. The result was that the WD performs slightly better than the Maxtor, but the difference is small. Anyway, like everyone says here, average home users won't notice any difference in performance.