Really depends on what your after ...MP or features or...?
Here are some I have looked at under 500:
http://www.newegg.com/Product/Produc...82E16830170123
http://www.newegg.com/Product/Produc...82E16830120207

and here is the main camera page
http://www.newegg.com/Product/Produc...&name=SLR-like