Go with the 400R
My experiences the A41 have not been entirely good..
Cheap build quality, cramped on the inside, not very good cable management (all compared to 400R)
The ONLY things I like about the A41 are the fancy little tray that rests on top near Power button and that shnazzy headphone rest on the case panel.
other than that.. the Corsair is cleaner, more room for future upgrades, better airflow, cable management, and waaaay more spots for fans.