MacBook won't switch on

[Phaser]

MacBook was working fine this morning, switched it off and put it in my bag to travel to work, got it out and it wouldn't switch on.

When the power supply is connected the green light is on as if it's charged, and pressing the button on the battery makes all the LEDs light up.

I've tried resetting the SMU but that didn't make a difference.

I think my Applecare expired last year, any ideas?

Thanks

 

[Phaser]

Nope, don't get the startup chime or any noise from the drive, nothing from the screen whatsoever.