I have a Samsung N732BD.
If it doesn't support 60hz, would it still be able to output at 480p then?
And to m1ket, yes other HD devices seem to work fine.
I forgot to say, I've been using Component ever since I got my PS3 (1 year ago), and that displays fine in 720p/1080i. The no HDMI is just something that has bugged me.
Your set is definitely HD ready and definitely supports 60hz so that's not it. I think we have the same model of Samsung (accept mine is the 40") so I know there is no probs with connecting a PS3.
All I can suggest is try and connect your PS3 via HDMI to someone else's set to rule out the PS3. I looked up your model and apparently it has 2 hdmi slots like mine...I know it sounds an obvious question but have you tried all 3 HDMI cables in both slots? If so the only other thing I can think is connect your PS3 via HDMI and go to the settings and just tick just 720p for eg.
or...lol...try a 4th HDMI cable, you never know.
Goodluck with it anyway and tell us how you get on.
P.S Is your Sammy still under warranty?
P.P.S I really hope you do get it sorted as the Sammy's HDMI input is miles better than the component IMHO