Good find on the apple wood. I have heard that some is great. I have
some - it is average.
My short experience is that it likes to twist a lot when you cut it
into boards. So, let it cure in the log sections for a while, then when
it's cut, get some pressure on it (to keep it flat).

I haven't "found" a lot of good wood, but you can definately make some
awesome table tops by mixing and matching various lumber that comes off
a Woodmizer, or you rip your self. There's a successful restaurant up
the hill (probably seats 200), all the table tops are high-glossed
mixed:walnut, maple, butternut, cherry,hickory, maybe others.