Anything out there similar to Radiohead's "OK Computer?"

In terms of instrumental/vocal style, that is. Lyrics don’t matter.

Some of Anathema’s later work (in particular, A Fine Day to Exit and A Natural Disaster) strikes me as somewhat similar.

Muse has made a career out of emulating Radiohead, and then there are bands like Palo Alto who went as far as to name themselves after radiohead songs.