Maybe a free renderer can interest you :)

 From:  Joe (INNERACTIVE)
518.26 In reply to 518.25 
Thanks Jesse, that was all indigo because I didn't add any custom materials. Very nice free alternative to Maxwell Render.

I did make some time last week to try out Kerkythea. On Linux the UI was a bit buggy, but I got some decent renders out of in in Windows XP. Definitely worth looking more into next week. I also plan to try out Yafray and hope to post some comparisons soon.