Books for vacation photos

Hi All,

I have a Mac and use Aperture. I have made a number of photo books from trips my family has taken, using the Aperture software and uploading the photos direcltly to Apple. While the books are OK, I am not entirely happy - the photos lose some of their luster, and there are some production issues.

Can anyone suggest an online service that gives a higher quality? I don't mind paying a bit more if that would result in a better quality book.

Thanks!