My A70f! Front panel mesh is rusted. Tempest (non evo) front rusted. Someone's antec 300 is also rusted. Elite series are the first to rust within 6 months but that's quality issue.
Anti rust coating only prevents upto a certain level, but those steel mesh eventually rusts, especially if you're in the city and the climate is humid. That's inevitable.
CM 690II Advance and 400R, can't go wrong with either- but Advance has a GPU card support and e-SATA dock on the top.