With LED's the Zalman Z11 looks better. It has a smoked side window, and with some Blue Led fans is going to look great.
Both cases are great, but I like more the Z11 because of the internal layout and the way the hard drives are mounted.
You could buy a LED-Strip from Bitfenix or NZXT. Or if you prefer NZXT sells some nice LED fans.
very thankful man!!