I was a downtown, suit-wearing lawyer for a while and learned that paralegals can make you or break you. The work they do is essential, and they get respect for it if they demand it. You will know more about the case than the lawyer.
There are times you will work insane hours just like the lawyers do, but generally you would have much more control over your life than they do - meaning you get to go home. You won't get the big office (who cares) or the big $, but you would get more time for your own life.
I say go for it. There's nothing you can't learn. Also, if it's an option don't rule out the JD and working as a briefing attorney for an appellate judge or something like that. That's ALL about writing.