I am looking into purchasing a pair of condensers. I have been eyeballing the 603s but I am now thinking about the oktava mk 012s. Also in the runnind is a Studio projects C1. I plan on recording overhead drums and acoustic guitar primarily but vocals as well provided the mic/s sound good. Currently I have a mxl 990, sm57, and an electrovoice dynamic (cant remember the model). Any and all suggestions and opinions are greatly appreciated.