1. Should I just put new parts in my bad laptop, or get a better COMPUTER alltogether?
2. Is it even possible to put new parts in a laptop?
3. What would be a good graphics card for a laptop, something that can run Elder Scrolls IV: Oblivion on a good graohics setting. I stupid bought the game and have to run it on lower than minimum graphics, and it still lags.
4. Would it be better just to take the parts out of my xbox? I hear thats possible.

I'm not in need of an instant response, I'm planning on using my money for a Xbox 360, then a better computer.