i don't know ANYTHING about virtual instruments other than ezdrummer. if i were to use (for example) IK Multimedia Miroslav Philharmonik (http://www.sweetwater.com/store/detail/MiroslavPhil/), do i need a keyboard controller? if so, would the Akai Professional MPK Mini Controller work? i don't want to invest so much money that I could go buy another guitar. any suggestions as to where i might find more information?