Use remote designers and developers? Check out Source Repo SVN
Working with designers and developers who work in remote locations tends to cause problems when trying to merge their code whether HTML/CSS or Server side (PHP) with mine, but Ben from StudioMohu introduced me to something called Source Repo.
Just hooked myself up with SourceRepo.com for some secure, simple and affordable SVN hosting and so far so good. Its definetly simple to use and setup and cheap which is also a bonus and ohhh its secure too.
Check it out, seriously its damn cool!