I searched the forums but couldn't find this news (unless it was in the front page, if so, I'm sorry).
The trial version of finalRender SE for 3ds Max (2009 - 2011, both 32- and 64-bit) is fully featured and includes all modules of its highest end version, as well as the industry leading non-photo-realistic rendering system, finalToon 3.5. thinkingParticles 4 is also available as a trial.
Basically It's all there but there will be a big watermark on your final rendered image.
I tried it and it's actually quite nice! It's very slow though compared to MentalRay but I cannot compare it to anything else. It has 10x more features than MRay though and they're all amazing!
Just something different to try I guess, the FinalToon is quite awesome too.
http://www.cebasstation.com/index.php?pid=news_next&nid=415