My question to you all is this: Is the conventional wisdom correct? Do grades effectively determine your destiny? Do they tell everyone in hi-res letters just how good at the law you are? Do they predict what kind of attorney you'll be?
You are completely out of the running for biglaw. Most of the midlaw firms in your area are not interested in you.
Do biglaw, midlaw, etc. lawyers think that your grades in law school are an indicator of how smart you are? Of how well you know the law? Does the associate at big & big look down his nose at opposing counsel who got a C in contracts? Does the judge? Are attorneys basically sorted into castes when they're 1Ls? Do the people who did poorly have any chance at convincing anyone that they might be able to do a good job, or are they simply dismissed out of hand? For the rest of their lives?
Like it or not, the legal industry is incredibly prestige-driven. Large corporate clients demand the best attorneys and will only go to those white-shoe firms that hire, what they perceive as, the "best attorneys" (HYS, Law Review, top x%).... some firms will simply dismiss you based on the school you went to and your grades. You will be blocked from these firms and there will be nothing you can do to get in short of offering them a multi-million dollar book of business.