Because I wanted the improved screen, I sold my 500 and bought a 505 with a $150 credit for getting a Sonystyle visa credit card.
The current offer (ends on 12/31/08) will allow you to save $100 on a new 505 from sonystyle.com. Net cost is $200 plus shipping and tax.
Act fast before the offer ends....
http://www.sonystyle.com/webapp/wcs/...52921644595898