Adding a Lettering Design Component to Website

[illusiveimagery]

I have a customer that needs a component added to their existing website. They are a sign company and would like customers to be able to design their sign, preview their sign and then send it all to the cart. I have tried to figure this out but I am not that advanced in the programming of databases. Quite frankly I don't know where to start! Any help would be greatly appreciated. Whether you want to point me in the right direction or if you want to design this yourself. We can pay you if you design this.

We would really prefer not to copy everyone elses but use the same idea. If we have to do the samething then that is fine.

Here are a few examples of sites out there with this concept:

http://www.speedysigns.com/lettering/lettering_tool.asp (most common)
http://www.signspecialist.com/lettering/lettering.html
http://www.uncleroys.com/design-sign...signtype=vinyl
http://www.greatlettering.com/designlettering.aspx
http://www.javasigns.com/tools/lt/4362

I understand that these examples are using different programming, I am just looking for the concept. I don't want to use the look of the site just the concept.