I'm working on a school project where I need recordings of speech of both males and females. I can't invest more than $50 on a new mic, so I have been looking at Shure PG48-QTR. My question is if this mic looks any good, and whether it will be a significant improvement over generic computer mics. Also, are there other cheap mics that might get the job done? I've only looked at Shure mics so far. Thanks for your help.