I'm more or less in the same boat as you are as far as playing. You might want to look at the Yamaha PSR740. Besides the regular styles, it also has what they call groove mode which changes the beat of a style, so you might be able to use it for a completely different song. It really stretches out your style repertoire. And it's an easy keyboard to navigate. As far as a sequencer, it's pretty mediochre, but it does work in a pinch.