I am in IT, for a short while longer as I finish my MBA....and good ridence to short term contracts, no promotability, declining over all pay, no stability. My father is a life long mechanical engineer and he put it quite right: when the manufacturing is all getting outsourced, who needs the engineers?
After the crash, rates came down quite a bit, and it was much dicier. Over the past year rates seem to be back up to late 90's rates.
The fact that manufacturing goes overseas does not imply that design/engineering will follow. I think design/engineering is going to be somewhat focused in the target markets.