Opinion sought on my new purchase mic mixer PreSonus
PreSonus makes decent stuff. You should have no problem recording for Librivox or podcasting with that setup. It comes with Studio One Artist software. You can install it and play with it if you want but if you're new to audio you'll want to stick with Audacity (which is free). Software like Studio One is aimed primarily at musicians and can be difficult to use for single track voice. The upside to Studio One is that the effects would be much better than those in Audacity. But the learning curve with Audacity is much shorter and there are a lot of people on these forums that can help you with any problems you might have. Good luck and have fun.