Changing the "homepage" url for logged-in users
Sure, something like this should work (untested):

&lt;a href="{{ currentUser ? url(craft.config.get('postLoginRedirect')) : siteUrl }}"&gt;Home&lt;/a&gt;


The above should create an absolute URL to whatever's in your postLoginRedirect config setting, relative to your siteUrl.

Note that if you want an URL relative to your Control Panel (e.g. "dashboard"), you'll want to use cpUrl() instead, i.e.

&lt;a href="{{ currentUser ? cpUrl(craft.config.get('postLoginRedirect')) : siteUrl }}"&gt;Home&lt;/a&gt;