Background: I've been captivated by the legal field for the last few years only and after a lot of thought, I have finally found enough motivation to pursue a J.D. (I'm especially attracted to the all-round exposure that a legal education provides) - want to make a career out of law. My current expertise (~14 years) is in Finance & IT - current job pays pretty decently, so am not in the fray just for money - though, of course, after slogging for 4 years, I'd hope to make at least better than current pay

Questions:
1) Am I crazy at this age and this stage of my career/life to jump into this (my wife has been supportive - though, of course, I don't know if she'd continue to be supportive, given that she would have to take care of our naughty 3-year old all by herself (if I decided to go to school)

2) I know Widener is in the 4th tier and Temple in the 3rd. What kind of impact would 'lower' tier schools have on future employment prospects? I know this is a very general question with multiple scenarios - like the "fork in the road" logic, but any inputs will be greatly appreciated.
3) Any ideas on schol amounts in these two schools? To you fresh undergrads out there - I'm not trying to steal your money here, but due to extraneous reasons, I'm probably as bankrupt as most of you are, despite earning decently.
4) I am thinking of waiting 2-3 more years and I think my net cash flow will become positive by then (expenses would've been largely paid down) and then applying to a higher tiered school and go full time. What do you think of that idea given that I'm 39 now. Is it really worthwhile graduating at 45 from a school in the top 25-30?
Any inputs/suggestions are appreciated in advance.