Welcome to the wonderful world of arrangers, Steve...
Even the manufacturers have this love/hate thing going on. Yamaha make some amazing sounding arrangers, but put them in a box with keybeds, knobs and buttons you'd expect on a Wal-Mart $100 toy. It's an insult to the users that happily pony up $1600 for something that the same price (in a WS) will buy you something built like a class piece of kit...
But, it's the only game they play, so buy Yamaha, you HAVE to make the concession. That E60 is a nice piece at that price point, though. So it's not ALL bad...
I think it's a good choice for you, because the sequencer is quite full featured, and there are some very good tools called Makeup Tools (sounds like a factory girl I knew!) that make it a snap to edit styles quickly to sound quite different to OOTB (out of the box). I have it's big brother, the G70, and sonically they are quite similar. A very 'live', in your face sound from the drums, a GREAT piano (get one, I'll show you how to tweak the piano to be even better!), and some styles that sound very 'live drummer'. Just don't get put off by the banks and banks of ballroom styles and polkas! Check out the 'Live Band' styles FIRST!
At that price point, I don't think you can find anything built as well, with 76 keys (who can play real piano parts on a 61?
) and such a good live sound.