I am wanting to get into podcasting with a limited budget. I want to come up with the best set up for getting good quality sound. I will be setting up my studio in a room in my house which is about 300 square feet and is fully furnished as a living room. Due to many factors, the studio must be in this room. I'm wanting to know what impact this room will have on the sound quality of my recordings and what I can do about it. Also I have another factor to deal with. I have serious breathing problems and must use a respirator to breathe. I have no trouble speaking clearly and at a normal volume, but any microphone used for recording will pick up the sound of the respirator. I'm wanting to know what I can do to keep from sounding like Darth Vader in my recordings. Is there any kind of post processing I could do to try to filter out the unwanted noise? It's really not that loud and will not be heard while I speak, but only between spoken phrases.