Linux Speech Recognition

I've been looking for Automated Speech Recognition for Linux for a while. I keep seeing Dragon Naturally Speaking on the selves locally.

I have read some discussions where people have gotten Dragon to work under Wine. But I really need something that works standard in and out style, so I can script things to work with it.

I have all kinds of ideas for two-way radio integration and Asterisk projects. If only something existed.

I have played with CMU Sphinx in the past, but it's not as developed as I'd like.

If anyone has experience in the area of Speech Recognition with Linux, I'd like to hear from you. Ideally I am looking for something that is under $200, and works as well as Dragon. It need not be open source, just Linux compatible.

Specifically if anyone has experience with Voxeo's Prophecy, or LumenVox, I am eager to hear more.

I doubt this online petition for a version of Dragon Naturally Speaking for Linux, will convince Nuance Communications, but I suppose it's worth a try.