I have been trying my hand at video presentations using still pictures and background music for some years but have never succeeded in adding narration. The problem has been whether I use Audacity, Serif MoviePlus X3 and previous versions or other sound recording products I get a background hum or, if I turn the gain down, hardly any sound. I have been using a Logitech USB headset and also the headset that came with Dragon Naturally Speaking but no matter what combination I have used the result is still the same. I then thought the problem was with my computer and considered new sound cards etc. etc. However, in the meantime, I have purchased an iMac 21.5" with 8Gb Ram and guess what? The hum is still there. It is now looking like I need to invest in a better microphone or even a sound recorder. I have seen the Olympus LS10 recorder but I don't even buy a lottery ticket so that's not going to happen. Any advice on something more reasonable would be appreciated. Kind regards. Tony