I've got an EH Small Clone, which IMO, is a really nice, lush sounding pedal. The BOSS pedals have always sounded really "wrong" to me for guitar for some reason, although when I played bass through a S/S Ampeg combo, they sounded really good. Ho hum.
http://www.hotroxuk.com in Nottingham are currently selling them for £49.00.
The Small Stone / Poly Chorus / EH is the one you hear on the intro to "Come As You Are" by some band from Seattle (who nicked the riff from Killing Joke's "Nighttime").
I had a Sovtek Small Stone phaser which had a dry solder joint and needed "warming up" before it worked, but when it did work, it sounded really lush, with a wide "jet plane" sweep. Loved the tone, so I bought an NYC reissue instead.