hi...i'm looking to get a good low-end arranger for a beginner/intermediate level player in the < $400 range. after looking into a few the GEM GK series has caught my eye and seems to be the frontrunner for me right now. can anyone give some positive or negative feedback on the GK310 as a starter keyboard (basically just to play around with...if i get serious enough about music i'll probably invest in something much better)?