Another vote for the coolermaster 530 here mate.
Things I have done so far is to remove the drive cage (removeable) and bungee cord my HDD in one of the spare drive bays, also removed all of the internal drive blanking plates.
Fitted 120 ambers on front and back and I''m a happy bunny.
Add to this the whole front panel being meshed, nice cool temps
I would suggest removing the honeycomb metal on the front and back before fitting everything as I forgot and now cant be assed to strip everything out.
The pci retention clips seem very strong, more than capable.
Also the top 2 front drive bays are stealthed, which im not usually a fan of, but the ones here work so well, adjustable doodah to make sure its in the most approapriate place for your optical drives eject button. The mechanism also seems nice and stiff, so no flappyness here.
Looks more expensive than it is
Think I paid about 40inc for mine