Ars Technica has a review of OSX 10.3 Panther. They also has a back catalog of reviews from 10.0, 10.1 and 10.2. The 10.3 review is here. Just reading the old reviews to get up to date. i know this is quite a long time since 10.0 came out first (review is dated 4 feb 2001) but i may as well. check them out.