as title would suggest..

looking for a compressor pedal, not too expensive, so no boutique types here!

used would be good.. in the UK (london)
guyatone st2. fairly decent for about 100 retail. piked mine u for 35 used and am very happy. better than most comps ive tried (boss, visual sound etc). i would put it on par with a MXR. and MXR, cant really go wrong.