Hmmm funny you should ask as I got one and it is my new primary BUG.
Go here http://www.p64resource.com/
I am guessing the trigger job is just a new lighter main spring... I put an 18# in mine ... makes the DA much nicer.
To tame the recoil a bit I installed a heavier recoil spring as well.
All are available from Wolf Gun Springs.
The main issue with these is the safety on some is too hard and can break. The above forum I linked can tell you more about that.
Dr. Todd may have something to say on this topic as well.
Mine is super accurate IE I can drop 4 inch plates from 20 yards with no sweat and this from a PPK size gun.
I carry mine in a Fobus Ankle holster or a homebrew pocket holster.