Buy a PS3 Player and then get Netflix ($8), Hulu Plus ($8) and Amazon Instant Video ($77/year)and you will have ZERO need for the Blu Ray Player. I have done this and do not have a single regret. Worried about money? Get rid of cable and just spend 16 dollars a month for Netflix and Hulu Plus and 77 dollars a year for the Amazon. Way cheaper than cable and you still get to watch current TV shows without commercials...a bonus!
What he said. You can also run free PS3 media server software on your PC and stream all kinds of stuff from it to your PS3.