I second that. As long as there's no LED fans, you don't HAVE to connect hdd / power LED's just because they're there. Simple solution.
If you dont even want the cables to tuck away, just pull the case LED's out of their mounts. It's not difficult. I've always changed the hdd/power LED's on all my personal cases. (I hate blue)
Main: i5-3570K, ASRock Z77 Pro4-M, Asus GTX660 TOP, 120 GB Vertex 3 Max IOPS, 2 TB Samsung EcoGreen F4, 8GB 1600MHz G.Skill @1.25V, Silverstone PS07B
HTPC: A8-5600K, MSI FM2-A75IA-E53, 4TB Samsung SSHD, 8GB 1866MHz G.Skill, Hand-Built Wood Case