» Wed Aug 18, 2010 12:15 pm
255 or 256 I believe. Though I would say the majority of users' games will reach their actual plugin limit well before 255 / 256. However, instead of crashing, you'll actually experience "!" marks all around the place... or at least that's what every other user that has too many plugins has experienced.
Regardless, like ToJKa says, the solution may be to just merge your mods. The best merging tool, in my opinion, would be http://newvegasnexus.com/downloads/file.php?id=39655.