Can anyone give me suggestions for a descent midi controller for around $100. I purchased the Acorn Masterkey 49 today and played with it for about 15 minutes. Seems good. I find the keys spongey. Is there a way to change the sensitivity of the keys within Logic ? To me they weren't sensitive enough for me. I found a Korg Nanokey and nano pad at the store and also a AKAI MK2 Mini.