This site has reviews: http://azpianonews.blogspot.ca/2012/07/review-casio-px350-px150-privia-digital.html Based on this, I got the Casio Privia PX-750 pretty recently. It included the stand and bench. Overall, it has been very nice. Good key action and nice sound. I think it was a good value. Ordered it through the Costco website.
I'd still get one with weighted keys. I have a cheaper keyboard that does something to imitate the resistance somewhat. But when I play on a real piano or a weighted keyboard, it's just different and my technique isn't as good due in part to the action. I'm not a real pianist, but I gig a ton on saxophone. I've played with quite a few pianists who do use the Casio Privia in professional situations and I've never had an issue with the sound quality.