I can help you there Masta and Gang. The one reason that Sulphites work for wine and not beer also has to do with not only the alcohol levels, but also the PH levels. Wine is quite acidic compared to beer! Thus, with the lower PH levels, sulphites will work just fine to kill the bacteria that can cause spoilage. If you test your mist kits, you will see that the acid is actually quite high in those kits to balance the sweetness. Lower PH + sulphites = better killing power.
With beer, you get higher PH + sulphites = almost no killing power. Therefore, you need a stronger sanitizer. Chlorine based sanitizers work and are cheap (unscented bleach), but are a pain to use since you need to soak everything for a minimum 20 minute contact time.
No rinse sanitizers like Star San and Idophor kill on contact. I use Idophor myself because I get it pretty cheap. I get a 500ml bottle of it for $8.00. This is a highly concentrated solution and I mix 1ml per 1L of water, so basically I get 500L of sanitizing solution! That's pretty cheap. The problem is that it is only effective for the first 24 hours of mixing it up. So I mix it up, use what I need and pour the rest out after. It works well with a spray bottle. The other problem with idophor is that it will stain clear/white plastic brown over time with use.
I hope this helps,
Dean