http://www.guitar-fxbox.com/
only chorus i have used that i actually cared for are a BOSS bass chorus i had from the 80's (CEB-2), and a small clone i owned when i was in high school...... i use to have quite a few electro-harmonix boxes i shouldn't have gotten rid of, but i got on a BOSS kick and sold / swapped them all for BOSS boxes regret it now /sigh worst was the big ass ugly green russian big muff..... i thought when i ebayed it the dudde was on crack buying it for 145 dollars..... then when i bought a made in NYC, i realised i was a stupid aass for not knowing the difference and selling my original heh.