vast number of pilots that are due to retire during the next 5 years from some major airlines.
I wouldn't hold your breath on that one, the retirement age has gone backwards for a start. The credit crunch may well affect things, especially if the US hits a recession. Still jobs to be had at the moment, though things are leaner than they were 2004-mid 2007. However, I don't know anyone who failed to get a flying job as long as they stuck at it. Those I know who did fall by the way side gave up very quickly.
So if you're sure (!) then go for it and good luck. As for too many student pilots who knows, it's better than having too many lawyers!