If you're a 1911 guru this video will be boring, but if you aren't, it might be interesting. This video is long at about 14 minutes, but we cover:
Basic field stripping of 1911 with bull barrel
removing Main spring housing / sear spring, beavertail, and safety
Tuning the sear spring (adjusting trigger pull weight)
Replacing the plunger spring (well sort of)
Measuring/fitting a thumb safety
detail stripping the slide
tuning the extractor
reassembly
http://www.youtube.com/v/KvII8OYzUSo&feature=youtu.be&hd=1
Basic field stripping of 1911 with bull barrel
removing Main spring housing / sear spring, beavertail, and safety
Tuning the sear spring (adjusting trigger pull weight)
Replacing the plunger spring (well sort of)
Measuring/fitting a thumb safety
detail stripping the slide
tuning the extractor
reassembly
http://www.youtube.com/v/KvII8OYzUSo&feature=youtu.be&hd=1