Why doesn't he want Antec? It's got everything he asked for. Blue LED fans, clear sidepanel, good airflow, ATX fitting, cable management, dust filters. I'd recommend an Antec 902 or 1200. For £140, you could get just about any case fitting the description he wants, just go online and take a look through, see what he likes. At first I wasn't sure on the 902, I got it mainly for the airflow, but the LEDs have grown on me.