Start my Own Podcast????

I've been guest hosting on The Justin Wayne Show now for, um, how long?   I know I've done several shows, and I can say that I'm rather enjoying this.  I've been motivated not just as a host but as a musician to seek out more new music.  I've found some rather amazing bands, and quite a few are local.  

I've had a few people ask me if and or when I would be starting my own show.   

Should I ?

Where do I start?  I have no clue what the next step should be!  

Help?

I'd love to hear from other podcasters on where/how you got started and any advice or suggestions you might have for me should I choose to go forward and start my own show.