Change some text on 6 animated gif files (have PSD's)

I have 6 animated GIF banners that need to be modified. I have the original PSD files for you to work with. On all 6 banners there are either one frame or one static location that has the text "$75". In each of those locations it needs to be changed to "$100". That is it really, but in some cases you may need to change font size to make it fit (I am not sure on that.) ? ## Deliverables I need the updated PSD files and updated versions of the animated GIF files.