Import data from old HDD (on a PC) to new MacBook I'm planning to buy a new MacBook Pro for school next month, and I wanted to know if I can use Migration Assistant or any other tool to get all data from my old hard drive to the new one.

The problem is: My old MacBook doesn't work anymore and its not worth repairing it or something like that.

I took the HDD out of the notebook, and I can access it on my PC.  

The OS version it contains is Lion (probably 10.7.2).
You should be able to access your hard drive like any external hard drive with a kit that can turn it into an external. Like $30 at best buy. After accessing said drive take the information that you need off of it and then you can either keep it as a back up for those files or reformat it and use it as an external hard drive.