As to the question of an up or down market, I don't worry about it. An MBA education will be sufficiently mutable so as to ensure that, at some point, I move into the area I'd seek to move into. There's just no point in trying to guess it.
If you want to though, here's how I see it playing out. You will see a sharp "correction" in real estate prices in 2007: a large number of interest only loans will baloon to higher payments, an increase in default rates and over inflated housing prices caused by speculation rather than true demand will bring the housing market to it's knees. This probably wont be a soft landing, you'll see many people become over under on their loans, and blammo. I imagine that will have a pretty signficant ripple effect on consumer confidence (when your neighbor gets evicted cause his baloon loan was a retarded idea and he cant refinance because the house is now worth less than the mortgage he seeks) - thereby restricting spending and sending us into a recession sometime, probably, in mid 2008.
Thats why my place is going on the market for sale now.