Greetings,
There is nothing wrong in desiring a sub to compliment your speakers. A decent sub can put out bass that most speakers can't touch and will definately give you more enjoyment when playing rock. No need to try and get used to flat sounding bass. Some other subs to look into are ones from Hsu and SVS. A more recent company called Epik, has a line of subs getting great reviews over at AVSforum.com, where you will find a forum devoted to subwoofers. As far as a universal player is concerned, look into the Oppo 980. it plays everything you want and costs around $200 dollars.
There is nothing wrong in desiring a sub to compliment your speakers. A decent sub can put out bass that most speakers can't touch and will definately give you more enjoyment when playing rock. No need to try and get used to flat sounding bass. Some other subs to look into are ones from Hsu and SVS. A more recent company called Epik, has a line of subs getting great reviews over at AVSforum.com, where you will find a forum devoted to subwoofers. As far as a universal player is concerned, look into the Oppo 980. it plays everything you want and costs around $200 dollars.