Topic: CF Image Generation

Got a project on my desk to generate images using CF. Here's the skinny:

a) User inputs a 6-8 letter word for security purposes (let's use "KITTIES")

b) User selects one of several 180x180 pixel backgrounds.

c) User submits request.

d) JPG file of "KITTIES" overlaying that background is generated and CFFILEd.

Anybody ever do anything like that? I've run across a few image manipulation CFXs but nothing so far that converts text from a form field into a GIF/JPG/PNG that can be layered over something else.