i have a studio project's b1(older version). It has been great for my home studio, but i know there's more out there that perform better. which one's would you guys prefer from the price range of $100-$300. i heard of them marshall mxl 3000's & 4000's from musiciansfriend.com that are pretty good. and them m-audio luna's....anyone with experience with these? any other in that price range that are great for vocals and acoustic guitars?