Can you suggest any?
Something like this (which kind of looks cool IMO) http://www.performance-pcs.com/catalog/index.php?main_page=product_info&products_id=2853
or perhaps something like this (which appears to be a little less intrusive) http://www.coolerguys.com/840556082477.html
Appearing to be thin plastic, I'm not too sure about either of their abilities to support a radiator and a fan though but I'm thinking the second one would be better. I would suggest looking to set up such a configuration with a 92mm fan blowing into the shroud, the rad and 120mm fan pulling from the shroud - a single fan setup pushing into the shroud will loose too much static pressure to provide adequate airflow through most rads. You could do push/pull with two 120mm fans but I think it would get loud