The single best way to play Bluray DVD's is via a HTPC without a doubt.
You can build your own for £300 or less and you have so much more choice when it comes to outputs, inputs, firmware and regions its definately the way to go if your tech savy.
You can get Bluray drives for £70 now e.g.
http://www.saverstore.com/productinf...7&rstrat=13321
I wouldn't buy from there but SCAN seem not to have any cheap ones in stock.