Ok, my opinion is that if you want a modern look, go with a light floor (like you showed), along with either a light grey wall or white wall. Use brushed aluminium for the trim and the bar. For light fixtures, I suppose the ones you suggested would be alright, but I think a large, square version of this would be cool.

If you do white walls, I think a silvery/grayish curtain would look nice, or if you do grey walls, a grey curtain/dark grey curtain would look good.
Use some nice modern shelves to make it so it doesn't feel like it has boring walls too.
