Good stuff there from BOAC and Avenger and a good prod from Starbear. We always brief MSA et al. You must always be aware of your terrain clearance.
You should also not rely on the fact that you are under radar vectors. This discussion came up in the sim just last week and the trainer had an experience where vectoring would have resulted in the a unfortunate outcome. He was aware of the terrain and was able to do something about it.
jriv, yes you do have the GPWS to aid you should that event occur and yes you can glance down at your chart but I would rather know this info before an occurrence. I would not like to be glancing and wondering in the heat of the moment. You don't have to remember it from 20 minutes ago. You can update your self every few moments. We also update each other throughout the whole approach with altitude and vector changes unless blindingly not necessary.
Safe flying everyone