Looking back at past posts I couldn't find anything recent where someone found where I could order a new BCM for my 2003 Hummer, and its already programmed.

Any ideas?

 

you can do it yourself with a tech 2 it has an option for replacing modules. I got mine a few months ago from this place. Vetronix GM Tech2 with Case for GM/SAAB/OPEL/SUZUKI/ISUZU with Candi Module Tech2
I was skeptical at first for the price but when I opened mine to see if it was cheaply made but when I did it was pretty impressive. it actually had gold plated boards and manufactured very well. at least mine was. even the LCD display had gold contact pin interfacelike the original tech2 instead of soldered on like the cheap knockoffs.