[sdiy] studio amp kits? chipamp

[peter edwards]

So... I've been looking into building a stereo amp for my studio to  
play all my home brewed synth gear through. I have a big heavy  
British Fidelity amp that I've been using for a while but it has  
started humming lately....and it's SOOOO heavy! I've been wanting to  
get something smaller for a while.  If anyone out there is interested  
in a trade lemme know.
anyway I want a small, decent quality, stereo amp that can bump but  
not blast...... I'm thinking MAX 100watts per channel.  I plan on  
plugging my mixer into it and running all audio to the amp THROUGH my  
mixer.
I looked around and found a simple, high quality LOOKing amp kit here
http://www.chipamp.com/

Has anyone built one of these amps??  It looks promising but I'm not  
too knowledgeable with hi-fi amp stuff.
do I need a preamp??? does anyone have other kit suggestions?
Thanks!!!!
-pete