check this out : http://www.ca-peterson.com/2011/11/magic-isdtp-param.html
The isdtp param strips the header off but there is a word of caution using this. I combined this with Iframe and was able to strip the header and sidebar off
As per the blog :
vw - used by the service cloud console. This is the only option that supports the new aloha theme. It strips the salesforce header and sidebar from the page. There's some small functionality degradation (enhanced lists are not longer enhanced, some ugly styles here and there) but this is your only option if you want to include chatter support through isdtp.
I had to therefore try with Iframe instead of enhanced list
https://na14.salesforce.com/500?fcf=00Bd0000003jFUo&isdtp=lt is nothing but I clicked on the case and went to the view and took the URL related to the view.
<apex:page sidebar="false" showheader="false" controller="case_ext">
thanks to you I learnt something new :D I felt that the most fantastic part is that you do not have to worry about mentioning saveURL and retURL explicitly since the view will return back to the same apex page after save and cancel :)