I'm selling a 1u 19" rackmounted guitar pre-amp, made by Soundlab.
It's an early 90's model and features 100 patches.
The effects that it has are as follows:

Signal Compressor
6 band EQ (Each patch can store independant EQ settings from this)
Stereo Chorus
Stero Delay (Short delay, produces reverb-like sounds)

Two groups of clean/distortion sounds in 2 banks which can be selected as A, B or A+B:
Group A has 2 clean sounds, group B has 1 clean, 1 overdrive and 1 distortion.
Group B has more emphasis on bass and treble with scooped mids, and is affected differently by the front panel EQ than Group A, to produce more tones.

One mono and one stereo fx loop.
Support for patch switching by either MIDI or 4 seperate assignable 1/4" jack foot switches.
Front panel has an input with input-gain control, rear has a line-level input for daisy chaining.

The clean sounds that can be created on this are fantastic. 2 of my own patches I use most are a really sharp brittle sounding glassy clean tone (Very EMG-like), and a really well rounded warm tube-sound.
Distortions and overdrives are a nice mellow variety, which can be shaped using the front panel EQ to change the tone quite a bit, although I haven't really had the chance to try them out much, I A/B it with my main pre-amp using the distortion from that.

(Badly taken, bit blurry)Pic of the unit here, it's the red one:
Pic of unit

Looking for £40, plus I reckon about £12 for postage because of the weight. If postage costs any more, I'll cover it.