I would recommend the Gigabyte cases, I have the Poseidon and I love it.
Good built-quality, nice looking and some of them even offer very cool features.
Gigabyte have a range of cases:
3D Aurora 570 - comes with Window & mesh side panel
3D Aurora - need to decide which panel you want (Window or mesh)
Poseidon - comes with window & mesh side panel
Triton series - Mid-range cases
The list goes on…
I would seriously look into Gigabyte has an option.
Why not check out the cases in more detail:
http://www.gigabyte.eu/Products/Chassis/Default.aspx