I think I have a suggestion for it though not complete.........
1. Park all the domains.
2. Develop the domain that you wish to build
SEO. You can use free hosting offered by certain hosting companies.
3. Build a mini site to the domain that you wish to develop.
4. submit the domain for
SEO for just few months.
5. Change the server for the domain and park back the domain again after it has got links.
I am sorry I am a newbie..... I might be wrong. Correct me if I am.
sundari.