Looking for text popup alert software

Hi,

Im looking for some sort of text popup software. What i want it to do is for example; I use this software on my windows laptop, and by using it i can send a large (as in you can see it from the far side of the room) graphical and colorful message (similar to maybe WordArt text) alert that will display on a windows PC which is on the same network.

Ive been looking around but i couldnt find anything like that. Im sure it must exist somewhere so if anyone has heard of something like that or something similar could you please let me know?

It would be much appreciated. Thanks.