That one in the sf bay area comes with a lot of accessories... but is also a few years older. But it gives me a pretty good idea on what to look for.
I went and checked to see what completed auctions for M3Ls looked like on ebay... and the lowest was £325. That's about $650... with the average around £400 ($800). I know that the British market for these is a bit more robust so a direct comparison may not be the best, but it should be close enough.
Thanks for the link, Dyno.
--sam
p.s. I have checked with my wife... and she's ok with the purchase.