Finally getting a PS3 - game suggestions

[DOLBYdigital]

Well I am finally thinking about getting a PS3 because of the price drop and a new game.
No its not Uncharted 2 or any of the other games one would think.
For me its mainly because of Way of the Samurai 3 and Demon Souls.

I have always loved the WotS series and am excited with what I hear about WotS 3.
Demon Souls looks like the hardcore online RPG that I have been waiting for as well.

My question for everyone is what other games should I get.
I like all genres of games but tend to enjoy the 'hidden gems' more than the big blockbusters.
Don't need any FPS games since I prefer PC for those types, looking for brawlers, action RPG, online co-op type games.
Anyone have other suggestions like WotS or Demon Souls?
How about PSN games? 
Plan to get WotS3, Demon Souls, Ninja Gaiden Sigma 1 &2, Brutal Legend, and Bayonetta. 

Please refrain from listing every over hyped game, Thanks  :)

Also do I need any HD cables or does the Slim come with them?

Thanks for any suggestions!