3dsmax Tree Plugins?

Does anyone know of any low/med poly tree plugins for 3d studio max?

I have been looking into purchasing SpeedTree but I was wandering if anyone knew of any similar plugins? (free ones would be good!)

NatFX for Maya looks good but I dont have maya :-(

natFX for max does lo poly too. Has billboard, low poly type and variable low-high poly. There's a max demo avaliable with one tree type to play with

Thanks Evak, didnt know there was a Max version! Trying the demo now... :-)

Although not a plugin Carrara 4 does great exteriors with trees

Thanks, I had a little look at Carrara 4 but I would really like to stick with 3dsmax.

SpeedTree and NatFX both look great, cant decide which one to get though!