MikeJ...yes we host them and I've not noticed anything being rejected due to file size...I will look into if there are size limits but I've seen some freakin huge Poser files come thru as well as some very complex poly heavy obj files..
The best way to know in the mean time would be to upload stuff and see if anything gets rejected.
I'll post back to this thread when I find anything out.. ...

 

Once in a while I look around,
I see a sound
and try to write it down
Sometimes they come out very soft
Tinkling light sound
The Sun comes up again