The Flickinger Chimera is a two channel boost/overdrive pedal that will provide sparkly clean boost to overdrive to fuzz in one pedal. From Clean to Mean the Flickinger Chimera is a dynamic pedal that is very interactive with your playing and guitar volume.
The Durham Electronics Sex Drive Clean Boost Pedal is the most transparent boost pedal on the market. The Sex Drive features compression and line buffering as well. Check out the Durham Sex Drive Clean Boost.