60 Hz lcd have terrible dinamic resolution. The only true 1080p displays are the 240Hz LCD(and LED) and the 600Hz plasmas. So, even with 1080p source and a 60hz 1080p lcd you most likely watch 350p in practice, and using a 720p lcd you have the same dinamic resolutionas using a 1080p, for 60hz lcd there isn't much why get a full hd unless the difference of price is pretty minimal.
Look this site test(much better than cnet)
www.hdtvtest.co.uk