My ps3 is dying!!! (80010514)?

About an hour ago..I was playing DJ HERO and my game kinda froze, by kinda I mean that the game semi froze but I could still hear the music. I turned it off the turned it back on, restarted the game only to read that it couldn't start due to error 80010514. My body froze and I almost teared up. I went outside to smoke and when I came back, i started it up again, it worked for about 20 minutes!! Then froze. I'm uming this is an overheating issue? What can I do? I noticed some heavy dust in the cracks and crevices of my system. So I unhooked it and will buy a dust gun tomorrow. But is this the end of my system?