You can skip the second step by entering the CamelCase name of the page in the quick-search field at the top of the page. But note that the page will effectively be "orphaned" unless you link to it from somewhere else.
While picking up good WikiPageNames is important, you can always change your mind and rename the page later.
You'll need to ask for the WIKI_RENAME permission in order to be allowed to do this. When renaming a page, you'll be offered the possibility to create a redirection page, so that links pointing to the old location will not be left dangling.
See also: TracWiki, PageTemplates, WikiFormatting, TracLinks, WikiDeletePage