Looks like you've picked out some good gear. You won't be going wrong with he Valveking. If anything, you might want to replace th crappy stock speaker, but other than that, it's quite a versatile amp. I've heard lots of different tones come out of it. Everything from sparkling cleans to screaming metal. I'm not sure what to tell you about the keyboard though. I might be wrong, but I don't think it has full sized keys, and you will find out that that sucks... quickly. I would look for something that has atleast 49 weighted, or semi-weighted, velocity sensitive keys. This will be more comfortable to play, and will let you be more dynamic in how you play.