Reply to Dead macbook pro need help !!!

Hey guys I've been checking this site everyday for the past year and its amazing but today my day was runied. What happened is that I was working on some new tracks in live and all of a sudden BOoom my speakers shut off and my mac book pro powers off. So I check on the web to see what was wrong, I tried some keyboard short cuts that were on apples web site to reset it... no luck theirSo I was like why don't I just take it to the apple store that can check it out. I get there and I had to wait 1hr for them to check it out because I didn't have an call in advance to see if they were available. I wait the hour and they told me to go to the genius bar the technician arrives i tell him my problem and he said he'll take it to the back to jump start it or something. I sitting their for about 15mins before he gets back. He had this look on his face like . He get to the counter looks at me and says I have bad news for you.... You logic board is dead . I almost had a heart attack. I ask him so what can be done to fix it. He says well you will need a new logic board and that's gonna cost you $500!!! At that moment I almost fell out of my chair with tears. I got up and left with my dead mac book and a bag of disbelief. So now I'm stuck with a dead mac book and no money What can I do??? :'(