need particle help

Okay this I what im aiming for. See the particles with the arrow pointing to them in the image...

http://s913.photobucket.com/albums/ac337/lazang1212/?action=view&current=particle.jpg&newest=1

I want them to disappear from the scene when I collide with them and I also want them to play a small sound effect too. So if you could give me some instructions and code on how to do that it would be very helpful thanks xD.

Just use a particle emitter like you normally would, but attach a BoxCollider to the same GameObject that the ParticleEmitter lives on. Change its size and shape to fit your specific needs, and do whatever scripting you need to do when some object collides with it.