Region 0 DVD IS available
After about 2 weeks of surfing the net I found a region 0 DVD in NTSC format with English subtitles (needle in a what?). It was a really hard find so I think some one out there may benefit from this info.
It's available at HKFlix (http://www.hkflix.com)
http://www.hkflix.com/xq/asp/filmID.2005/qx/details.htm
-$25, and shipping isn't bad either. Great Movie!
There's also "My Sassy Girl" and the entire "Infernal Affairs" trilogy available for US play as well.