Best Method for domain names and redirects

Hello Black Hat World.

Question.

What is the best SEO (white or black) method to have multiple domain names point to a single domain name.

Example:
If my domain name is ( GreatDaneDogCollars.com ) and on this site I sell 'great dane dog collars'. For best SEO I also buy (Great-Dane-Dog-Collars.com, and GreatDane-DogCollars.com).

Here I have 2 options here it seems .

Option 1. Use a domain name alias setting on my hosting account and have both (Great-Dane-Dog-Collars.com, and GreatDane-DogCollars.com) just act as fake top level domain names (masking of sorts) for my sales site - and submit all 3 to google to be indexed.

or.

Option 2. For both (Great-Dane-Dog-Collars.com, and GreatDane-DogCollars.com) generate 5-10 door way pages with great dane related key words that then java redirects to my real site GreatDaneDogCollars.com when a surfer hits that page, and submit all 3 to google to be indexed.

Whats better for SEO? Is their a third option? prehaps a hybrid answer?

Thank you.

Would this post be better in the White Hat SEO section? -

it is a a SEO question and I know that their has to be one knowledge person who knows this answer... Any takers?