pre amps with HT bypass


I need to use the system as a dual system. Two channel and HT, so as I rebuild it I want to go to pre amp with bypass. I notice a couple have this feature. Can folks help me make up a list. The speakers I am using are maggies 1.6.

I am going to also purchase a power amp as everyone is saying that the NAD 975 at 140 watts is not doing it. I am thinking a Bel Canto 1000/500 or Wyred for sound, perhaps Nuforce

Any help will be welcome.
inwanw
There are lots of pre-amps w HT by-pass. A few very good ones that I have owned include VAC Ren, BAT (most), and some Doshi Alaaps. There are dozens of others. can you narrow it done a little? Tube or ss, line only or line w phono, budget, etc?
Here's a relatively long list of them, though by no means comprehensive:

http://www.polkaudio.com/forums/showthread.php?t=90594
From my understanding of the class D amps they all really seem to benifit from tube pre amps. So am leaning that way.

The Wyred for sound is on the list. More so I am trying to make a decision that will works for the best.

Thank you for the link, will check them out.