James, please don't be so altrustic, bid I say, bid!! 
Just kidding... though i would like to see it go for a fair price. I love my Inons to death (I have 2), and am only selling this one as the next two years I'll be stuck on the wards with about 1 week of vacation time a year. No diving for me!
spc337, the Inon Z220s refers to the version without the focus light and laser. Sorry, I should have made this a bit clearer. Bad naming choice on Inon's part too I suppose. But in terms of the actual strobe itself, the flash output is identical to that of the Z220, and battery life will be better depending on how much the focus light is used on the Z220.
One thing I love about the Z220/220s that is NOT available on the new Z240s is the recycle beep. Inon to my great disappointment removed the beep feature so you cannot tell when the strobe has recycled. I can't tell you how many times I have relied on that beep when my eyes are glued to the VF!
Yeang