Using PHPs excellent Smarty template engine, one can absolutely separate code from design.

Do do this :
1. Make a desing in sitespinner
2. Publish directly into the samrty templates directory
3. Insert this code to prevent CSS / JS errors

function css_image_fix($tpl_source, &$smarty)
{
    $out = str_replace('<style','{literal}<style',$tpl_source);
    $out = str_replace('SRC=".','SRC="./templates',$out);
    $out = str_replace('<script','{literal}<script',$out);
    $out = str_replace('</script','{/literal}</script',$out);
    return str_replace('</style>','</style>{/literal}',$out);
}

$smarty->register_prefilter("css_image_fix");

Use the page as template; the code will take care of picture paths and excluding CSS and JS from parsing !

I think the combination (Sitespinner, PHP(Mysql) and Smarty) make a killer webapp RAD combination.

more about smarty : Here
more about php : Here

Kind regards,

Pim Koeman, The Netherlands