@ukbondraider:
I wouldn't blame you for being just a little jittery about the decision. I was in your shoes a few years back - around the same age and struggling with similar queries. I hedged my bets and took the plunge. Things ultimately turned out well for me (here's
my story in a nutshell).
I moved into an Industry (as opposed to an I-Banking) M&A role. It gives me the opportunity to work on a variety of deals - minus the crazy hours (and minus the fantastic $$$). Though I don't have a bank balance that would make jaws drop, I do have my life back (I was in consulting earlier).
But I do know of others who weren't as lucky. Good guys from the top-10 schools with great potential. Possibly it was the economy, maybe it was luck. I know in the grander scheme of things, they'll do well.
I know in my case, luck played a big role. After going through the rollercoaster ride, I don't think I'm still qualified to state with confidence if the decision will or will not work for someone else. It's ultimately a personal call you've got to take after considering all the aspects - professional, personal, financial.
Good luck to you, buddy.