There are two cool new themes for Moodle 1.9 available from the theme repository at Moodle.org. First up is Corporate Blue which has nice gradient background and plenty of room for a logo in the header. Corporate Blue was created by Thiago Araujo and is available at http://moodle.org/mod/data/view.php?d=26&rid=4605
Next up is Cafelite – WR, which just makes me want to drink coffee and mellow out (I recommend checking out the Cafelite demonstration site and playing the smooth jazz to get the full effect). Cafelite WR was created by Mary Evans. Download or learn more about Cafelite WR here: http://moodle.org/mod/data/view.php?d=26&rid=4617.