Bd30 Or Bd50???

[LEO8978]

Hi All, this is my first post, so I figured that "Newbie Discussion" would be the approprite place for my first question. I recently purchased my first Plasma display. It's the TH-46PZ85U from Panasonic. I'm loving it so far, but right now I only have HD cable from Comcast, so I'm not using the display to it's full potential. I have been researching BD players for some time now on this forum, which has been very informative. I plan on getting a BD player as well as a new receiver and speakers. I was thinking about waiting for the BD50 from Panasonic, but I can pick up a BD30 for $386.00. My question is, since the receiver I purchase will be able to decode the audio (probably Onkyo), would I really benefit at all by getting a BD50? What are your thoughts?