LED Driver project, work in progress

I've been interested in the Arduino for a while now and played with it a little bit. Until now the most involved project I've done with it is playing around with variations on using it to program a web server with an ethernet shield. Well now I'm deep into something that is introducing me to the complexities involved in working a project up as a prototype with breadboards and then taking it to the next level by soldering components together on a generic PCB. I'm using a Philips 4794 LED driver to extend the Arduino's control of LEDs beyond the 8 or so it can control directly with pinouts. Actually I'm using 6 LED drivers to control 43 LEDs that spell out my son's name traced along his toddler version of his written name, bringing his early signature to life in a blinky way. To figure out the components and schematics I relied a lot on this post and this post, and then this post to extend to multiple LED drivers.
So, first the prototype:

 You can see here the Arduino (Duemilanove), breadboards, one LED driver, lots of leads.

And here the LEDs and the circuitry behind.








For programming I used the example in the first link above and changed the value associated with the count variable to include larger numbers of LEDs. I still don't really understand how the program works and ultimately I would like it to do something a little different than it does so I will have to figure that out later. But since that worked for 16 LEDs I started working on a more permanent version. That work in progress is below. There is a lot of soldering to do. By the time I finish, he will be in college:

All 6 LED drivers are soldered in and I tested the circuit to make sure my sloppy soldering
would work with one LED, which I was lucky enough to catch blinking for the camera.

Sloppy soldering...I will blame the cheap soldering iron until
I get a better one and will have no excuse.