The latest firmware for the Magic TV 3700 adds support for 576p
http://www.geekzone.co.nz/forums.asp?forumid=83&topicid=89464&page_no=10#697988

JBHifi has the 3700 for $577 but it was on sale for $497 until a few days ago. As $577 is overpriced they might accept the previous price if asked.