Check out the Yamaha S03 - I have its big brother, the S80, and I LOVE the string sounds. The pianos are great, too. The brass/woodwinds are nothing special, but I've never met a set of keys whose brass/woodwinds I did like.
I know the S03 and S80 have an overlapping sound set (so my beloved strings MAY not be on the S03), so I won't be too emphatic, but I certainly think its worth checking it out at the store if you can.