If you breed your spider and pastel to your albino, you are probably going to produce spiders het albino and pastel het albinos. The pastel albinos really aren't that spectacular, they just look like reg. albinos really. Now the spider albino is a Hawt! But that is just my two cents.
EDIT: I would say, get a female pastel and then breed your male spider to both your albino and the pastel.