It will help enormously if you want to be a law professor someday. An advanced degree in something other than law is now the single most important hiring credential. If you want to work for a law firm, I"m not sure it would be valued enough to make it worthwhile.
Thanks for the responses everyone... I had thoughts about what I wanted to do when I first came to law school, but these grades blew those plans out of the water, but I like the idea of taking a job, working hard and making my grades disappear..or at least fade. At least I found a job for this summer before grades came out, hope they won't rescind my offer.
Completely serious question-- how bad would my grades have to be before I should just realize law school isn't for me? Should you stay if you are the bottom of the class at a top ten school (and you tried).