I am about to buy all of the needed mics to use on a drumset. My kit mics will include a Shure SM57, four Sennheiser MD421's, and an AKG D112. I'm not sure what overheads to get. Ones that I have considered include Shure SM81's and AKG C414's. The budget is around $1000 per microphone. Also, if you have a recommendation for a hi-hat mic, that would be appreciated too. Thank You.