My laptop does not boot

[boyboy400]

Thank you all ... I gave it to a computer store to repair for me ... they said the HDD was gone and charged me 100$ for 500G HDD and 35 for labor ...
Then I get my laptop, take it home and see the front edge is a little bit broken .. Also I tried to use my recovery disks to install a new windows and finally it shuts down and when I turn it on again, the screen is gone! I mean the lappy is on but with NO screen .. so I return it and now I get a call saying that the 4G Ram was dead as well and they replaced it and it should be fine ...
I don't know if it's fair to ask for damage compensation for the broken edge .. I say it has happened here, they guy sort of denied it I asked them to look around maybe they can find the piece but she said they couldn't find it ...
I guess if they don't charge me for the RAM I will forget about the broken part

You remember Nihil about its temperature problem? It used to happen when I was in "Speed" mode.. since then I started using the Stamnia mode all the time .. so this is one problem of this laptop ..
Now it has a tiny broken edge as well ...
HDD is replaced as well ...

I have a question: if it didn't have that penny size broken edge (next to the screw), how much would you pay for it? (3 years old)
And now how much do you think it's worth? I'm just curious
Thank you
PS. This is my laptop:
http://reviews.cnet.com/laptops/sony...-33634228.html