There's actually some YouTube vids up with anaglyphs made in Carrara. Render with one camera as right eye, and have another camera as a child of that for the left eye. Etc.

Here's a nice YouTube vid showing the process: Anaglyph 3d with free software.

The vid actually shows how to do it with GIMP & D|S. But would work for Carrara and PhotoShop just the same. (The concepts are more important than the software for this process.) The anaglyph is made by using the 2D software to separate color channels and recombine the left and right images. (But if you're doing animations, it might be better to use PhotoShop with batch processing to produce the anaglyph result for all the frame pairs. There might be another trick to do batch stuff in GIMP with ScriptFu, but I'm not familiar enough to say for sure.)

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Barbequed Pixels?

Your friendly neighborhood Wings3D nut.
Also feel free to browse my freebies at ShareCG.
There might be something worth downloading.