Nice build, as Monkeyspaz says, even more impressive as its your first.
The black definatly looks better than chrome would, it fits with the white/black theme, chrome wouldnt go so nicely.
I wanted to insert LED's into my EK block too but was scared of doing anything to it as the top is frosted so i cannot see to drill a small hole for the LED's, do you have any photo of how you've done this?