I would like to sell something that I consider quite interesting and different than any of the currently available copycat and 'me-too' boxes:
The Valley "Leveler" is a fast peak limiter which uses a class A VCA and minimal signal path (just 2 op amps and the VCA).
It is a very transparent limiter which uses Michael Morgan's patented "log of the absolute value" detection scheme. rather than peak or RMS detection.
I have two modules and the rare Valley PR-2 rack. This is a 1u rack with a link switch and integral power supply.
$750 / offer for the entire package. This will pay for itself in one session...
Read a complete description here:
http://www.galaxyaudio.com/products/PDF2/816%20LEVELLER.pdf