I thoroughly appreciate and enjoy visual case-design as art. I had plans once of my own. I had this Compaq ProLiant server case -- bigger than full-tower, three-inch double braked caster wheels. I'd added a Lexan side-window, to which I'd applied mirror-reflective automotive window film -- perfect job, with no bubbles or creases. I was going to study pictures of lightning strikes, to manufacture some Lexan splinters and fit them with LEDs. Then I was planning to attach those to the server LED drive activity lights, all properly connected for my RAID-5. So drive activity would trigger "lightning" in the case window.
I think it would've been a lot of trouble to "get it right". The transmitted light from the LEDs must be strong enough to show through the window film. I'm not sure how many LEDs you can string to the HDD-LED pins on your motherboard.
No -- these days (and I'll post some pictures when I get to it) -- "pretty" plays second-string to "optimal function". The case doesn't have to look ugly, and you can see where I'm coming from here if you read my recent Coolermaster 830/831/832 SE thread. But that also explains what I mean by "optimal function".
Air-cooling notwithstanding, I've got cold-cathode 6" pairs on two different switches, all green at the moment. Trick is to mounting them for maximum case-lighting, an no less for how easily they can be pulled away from their case-mounting and then replaced. I've tried magnetic tape and velcro patches. The glue on both eventually fails. While I'm working on it, my current plan is to try (formerly Pit-Crews Auto-adhesive by Permatex) Loctite Stik'n'Seal, either the indoor or outdoor formula. That is, the magnetic tape or velcro swatches would be mounted on aluminum with the adhesive. That stuff work's pretty good, and no worse than flex-seal products, which is my other idea -- either the tape or the wet glue in a tube.
Not winning any prizes with it, but it looks "pretty" enough. And I can flip on "these lights" or "those lights" or both with two neat little red toggle switches.