Looking to record keyboard (MIDI) and vocal simultaneously at home. Have had Tascam 122 (never upgraded from Cubase that came w/it in 2005), a $60 Shure microphone, & Windows XP. Biggest question is how to record both simultaneously onto separate tracks. Do I need an interface to do both? Are there interfaces designed to do both simultaneously (as the 122 doesn't seem designed to)? Is just basic ProTools enough to do both with a USB microphone (such as ProTools Vocal Studio) & MIDI input straight to computer (via USB)? I get lost with MIDI talk. I'm just looking at basic recording so I can edit MIDI and add some effects to the vocals. I also don't know how to substitute another piano sound for the raw keyboard midi recorded (what program would give me that--had GigaStudio that came w/Cubase but could never figure that out--is something like that what I would need to get a polished, ambienced, & reverbed piano sound for the MIDI data that's been recorded)? Sorry so many questions, but I've tried about every route to record what I need to & am finding doing it at home works best for the money & time--it suits my purposes--and if I can get some help with these basic setup, equipment, and software questions, it would go a long way towards making me much more self-sufficient so I don't have to rely on someone else for recording.