I was kinda waiting for that to come outta you, Paul.
You can do a lot worse, as in LOTS worse than getting a JBL, wood or not. Being as it's your starter gun and all, you;ll like the simplicity of it, it works despite the abuse you'll dish out as you learn and it'll last until you have kids, if you're not careful. :naughty
While I've used a Woody, (uh oh...) a few times, my preference is a standard aluminum tube model, like a NW 38 Special, which is pretty stout but short for your locale, Sawed Off and Magnum models. Wrap the barrels with electrical tape to hide the shine, put a twin sbarb spinner/detachable on and off you go.
That unit from Spearfish specialties is a pretty well thought out and hardware intensive piece that once you spend some time figuring out what it is you wanna do, will come to light along with Riffe's, Rabbittechs and Rob Allen's. There, I said it...:yack I've seen some gclowns in the Gulf wearing those guns and it's like a hardware store falling over the side... They bring back the fish though. There are a couple of DB locals here that are pretty proud of their Rabbittechs, maybe they'll pitch in.
If I had to do it, I'd give serious thought to a simple euro gun and learn with it, then keep it in the quiver when you get or make a real gun that better suits your more experienced needs. Give a looksee at ebay. There's always some deal going on.
(man, that hurt!)
sven