Do I Need a New Computer?

I've had this laptop computer for a few years...

Slowly it's begun to act up: If I want to add photos from my camera, I have to restart it between photo uploads.









Now the battery has died. I can still use it, plugged in.

Should I hunt for a new battery? Is it worth the cost? I really don't want to invest in a computer that is acting up and showing signs of wear.

In the meantime, I should probably burn photos I want to keep onto a DVD... in case something else goes wrong. I really don't want to add to landfills until it's absolutely necessary.