Alex,
I could easily do something like that for sure.... However, I want to make this as much like an old-fashioned 'drawing' as possible, and take a video of it to prove there is no funny business going on. I want you all to trust in me and the site, and in turn you will do the same...
Besides, there isn't much excitement in hitting a GO button and waiting for a name is it? At least it doesn't make for a good video
It's just more fun drawing a name out of a hat isn't it!? :P