Hi I am new here, and new at building amps. I just ordered one of these
http://cgi.ebay.com/Audio-Power-Amplifier-20W-2x-TDA2003-Assembling-kit_W0QQitemZ230446223553QQcmdZViewItemQQptZLH_DefaultDomain_0?hash=item35a7aa50c1
It looks like a really good deal. About $10.00 with shipping, and includes everything but power, speaker, and enclosure.
I'm planning on using the lm386 amp that I already built as a preamp. If I have any problems, I hope I can pick some of your brains.