my setup is pretty simple
I have the prs-300
I got the basic cover for it
http://www.amazon.com/Sony-Digital-R...=pd_rhf_shvl_4
and I use the GE booklight here, the clip is perfect for clipping onto the side of my cover. It works great!
http://www.amazon.com/17228-Lights-B...3641948&sr=1-1