rocknbil - 3:47 pm on Mar 20, 2012 (gmt 0)
Will I run into a problem when I'm finished, and it's time to take everything and put it into the root folder?
When you move it out to root, in your settings in Wordpress you'll have to change the URL's there. This will immediately log you out of admin (because the URL is now different.) Otherwise, if you're using seo friendly permalinks, no, everything will change from example.com/wordpress to example.com. Also if you're using seo friendly permalinks you may have to modify your .htaccess but most of the time it's relative to the current directory.
That is, if your .htaccess points to /wordpress/index.php, you'd change it to /index.php. If it's just index.php (relative to wherever you are) no change should be needed.
If you're on windows using a rewrite module, it's the web.config file but the concepts are the same.
When you go live with it be sure to set the privacy settings for "allow S.E.'s to index my site" (you have that off, now, during development . . . right?) :-)