Style checker?

[Daniel Ruggeri]

All;
   I still develop in what a lot of folks would consider a fairly "primitive" 
environment (vi) that doesn't do anything for style checking things like line 
width/spacing before and after control statements/indentation/variable 
declaration/etc. I know of the indent tool available on most unix-like systems, 
but was wondering if you folks use any other tools to help along that path?
-- 
Daniel Ruggeri