Python GUI GTK+ Preview HTML and Record it

Hi, I need a 800x600 gui in black/grey using GTK+ On the right side it will display an HTML/SWF preview, under it, a couple of text fields and 2 more options (color, text type/size). 2 Buttons , EXPORT and CANCEL and on the LEFT a list with all my HTML files (they can be previewed on the RIGHT side) so I can choose what to preview (the swf is updated with xml, that I already have ! you only need to update the XML). Need to record the preview (outside screen) for 10 seconds using ffmpeg to PNG images then use imagemagick and then convert it with ffmpeg to a video format (I'll tell you what later). Thanks, PS: GUI sample attached.