I have the JBJ all in one setup. Many say its cheap, I am sure it is. But its worked fine for me now for 2 years, no issues. Also I paid less than that link, like $70 if I remember.
I have a setup similar to the one at Doc Smith's and the only thing i don't like is that every once and awhile i have to clean the tubing out. The tubing gets all type of debris over time. I used an old water vacum as my chamber and hooked it to a rio 600 pump. works well and easily dissolve all the co2 bubble inside. I have the out put placed by my HOB intake