Ayreon is great - these two albums originally sold seperately. There are so many different singers and artists on these two CDs, you can't go wrong. Disk 2 is my favorite - prog with a harder metal edge - disk one is more keyboard based but still excellent in its own right. The two disks make up the entire story. I own a lot more Ayreon now but these remain my favorite.
check out "To The Quasar"