Since you're on DreamHost, the 'moving' of your site isn't that hard
http://codex.wordpress.org/Moving_WordPress#When_Your_Domain_Name_or_URLs_Change may look scary, but really you're doing just a couple things.
1) On test.dbsanewjersey.org, edit your site's home and site URL to dbsanewjersey.org (this is under Settings -> General)
2) Copy all your files from test.dbsanewjersey.org to dbsanewjersey.org
3) Search/Replace your database posts to change test.dbsanewjersey.org into dbsanewjersey.org (there are a few ways, but I like the two I listed here - http://wiki.dreamhost.com/WordPress#DreamHosters - under step 4
Finding a suitable theme, of course, is a lot harder!