thanks all, ended up getting this http://www.botachtactical.com/onu51brmi.html + 15% off.
the angle grinder point is true, but at least this one should be more resistant to bolt cutter (what most of the thieves in la have)

while researching i also found that at 20 dollar bottle jack can **** a new york lock, in 42s
http://www.ctc.org.uk/resources/Magazine/200803042.pdf