I would expect that the major hurdle with streaming movies in any kind of HD quality, would be one of your Internet connection.
You need to be able to maintain a pretty high level of service on your Internet connection for that. You need a rather high speed connection, and one that can maintain those high speeds for long periods of time. That's a bit of a tall order.
I'm considering buying the PS3 Slim, not for games, but for the Blu-Ray player and Netflix streaming. Seems like the other Blu-Ray players out there with Netflix streaming capabilities (e.g. Samsung BD-P3600 or LGBD390) have a number of issues. How is the performance and quality of streaming Netflix movies?
Also, through the PS3's web browser I'm assuming you can use services like Pandora or Rhapsody as well as YouTube. Any issues with any of those? Thanks!