Macbook Pro won't boot

Hello all and thanks in advance
History:
I have a 2010 Macbook Pro. One day I was copying some files and it froze indefinitely. I turned it back on and I got the Grey screen with the question mark file. I put a system restore disc in and opened the disk utility. Strangely, my hard drive (plugged in) did not show up in the menu. I took the hard drive out and took all my important files out onto my iMac. The iMac recognized the hard drive but the Macbook did not. I attempted a system restore for my hard drive and when it was done, it likely restarted and then It went to the beggining of the system restore process again. I shut down the computer because I did not want to do another system restore.
When I turned it back on - the iMac would not get past the apple logo with the spinning wheel. I turned the iMac back on and chose my MacBook hard drive by holding option at startup. The hard drive managed to boot but the system restore did not work, all of my original files were still there. I did the same thing with the iMac harddrive and that also booted. When on my iMac hard drive I went to disk utility and verified disk for my MacBook Hard Drive. It needed repairs, so I repaired it, and it no longer needs repairs.
I plugged the MacBook Pro hard drive into a few windows computers to try to get it to show up but it didn't (Because it's windows DUH) But I just wonder if that caused any issues.
Problem 1:
Now, the iMac goes to a white screen when it turns on and the only way to boot is to hold option and select the Hard Drive (I checked and it does not need repairs in disk Utility)
How can I make my iMac work without holding option at startup?
Problem 2:
When I put my MacBook Hard Drive back into my MacBook. My Macbook only turns on for a few seconds and then shuts off, tries to turn on again, and then shuts off in a loop. The Monitor does not turn on AT ALL. The white flashing lite on the front side of the macbook case goes on for the duration of the startup attempt. The Hard Drive is getting power as well as the fan. I am unsure about the other parts.
What is the issue with my MacBook? Any clues?
Notes:
I also recently got a new charger (60W) and it was for MACBOOK not MACBOOK PRO. I heard this may also cause the battery to die (permanently). However, when I click on the battery indicator on the side of the MacBook, it gives me five green dots.
On the first try to start up, I hear two beeps (unsure if they are from the speakers or the hardware). I know that that is supposed to mean RAM incompatible but the RAM I am using is the RAM that came with. I did remove and reinstall the RAM twice and it still beeps twice (sometimes once).
I have attempted holding option at startup. Holding C at startup (A system restore disc is still in there) and the power doesn't stay on long enough to do anything.
The MacBook has been without its back case for about two weeks now so I hope that didn't break anything.
The Power doesn't remain on long enough to do PRAM or SRC Resets. At least I think so, please correct me if you think I can reset these before the power shuts off (5 or 6 seconds)
P.S. I am okay with turning it into to the Apple Store or Geek Squad or whatever, I just want your opinions first because I honestly trust the internet more than Geek Squad. If you could pin it down to a specific hardware or something that would be GREAT.
THANK YOU! Sorry for the length

I just tried booting the computer, and it BOOTED! I even got to play a little music and start a web browser before the screen went blank and the music stopped abruptly. I think I heard the disk shutting down as well while the keyboard light was still on.
Now it wont boot again.

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http://support.apple.com/kb/TS1388
https://www.apple.com/support/osx/
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http://www.apple.com/support/mac101/tour/
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