First I will explain why I think your setup is lacking, then ill try and help suggest a better option. First ill say that it is good that you have done more that just throw it in a shoebox and expect it to survive like many owners do, your setup is on the right track. Heres the problem...
Your uv bulb as you have described puts out UVA rays, while UVA is beneficial (psycological mostly) they are not the UV rays your tort needs most. Your tort needs UVB rays to help him/her to make vitamin D3 (vitamin D3 helps reptiles absorb calcium). So essentially the bulb you have is only partially beneficial.
Think about the black light "night" bulb you are using. There is no natural black light. Would you want to sleep with a black light on, Im guessing no, Its like an acid trip or rave all night! I am not a fan of any type of light emitting night light, I think that many others will agree.
The good news is this. As you said, you got all that stuff at petsmart. At petsmart there are better options.
First for UV i would use something like the zoomed reptisun 5.0 of a true murcury vapor bulb, just make sure that it provides UVB rays. I have arcadia compact flourescent "reptile D3" lights from the bean farm (i think its beanfarm.com). Something along these lines would be better.
Second, ditch the black light (unless you paint your torts enclosure with day glow paint, just kidding), get a ceramic heat emitter, Petsmart sells zoomed, they do the job just fine. You may also want something that provides heat and light (high wattage incandescent works just fine) for daytime use.
Basically what you will have is the ceramic heat emitter running 24/7, the UVB bulb running durring the day along with the incandescent if you need a bit more daytime heat.
Im not trying to bash your setup so please dont take any of this the wrong way. It took me a while to figure all this out so I figure I should give my small amount of knowlege to anyone I can!!!
Hope this helps!
-Ian