Ronalopolis took an external hard drive and put it inside of a gutted NES we found years ago. Then he wired the an LED for the drive access light to the power light (so the NES power light flickers when the drive is being accessed). We use that for our soft-modded Wii, so it fits right in on the shelf. It was REALLY easy to do.
Like I mentioned in the emulation thread, I don't use emulation for any games unless region locking is a problem. He's played Zero: Tsukihami no Kamen (Fatal Frame: Mask of the Lunar Eclipse) on there because there was no U.S. release but there was a fan translation patch for it. I played Another Code R: A Journey Into Lost Memories (sequel to Trace Memory) since it was released in Europe, so an English version exists, but Cing is now out of business so I figure it'll never make it here, and I played through Captain Rainbow on it, because there's no way in Hell that'll ever get out of Japan. If it does, I'll gladly buy it. Maybe I'll even buy copies for other people, just so support it. Transgender Birdo's plight was too hilarious to keep to myself.
Anyway, that's all we've ever used our mod for. I buy every game I can, and I feel I have extremely justifiable reasons for these. (Side note: The sequel to Hotel Dusk, which is also Cing, also never got an American release. But since it was for the region-free DS, I gladly imported it instead.)