How you considered using Dropbox? If you have a Dropbox account on your PC and the Dropbox app on your iPhone, then pretty much anything that's put into the account on your PC shows up on your phone.
Personally I'd recommend the Voice Dream Reader app which integrates nicely with Dropbox and has a great range of voices. You can't edit text with this app however, it's only for listening.
The above method avoids the use of iTunes, which personally I've never liked anyway.
Although I haven't tried Phone Drive myself, I understand it has a document viewer within it. It works on older versions of iOS and there's an AppleVIS article about it see
http://www.applevis.com/apps/ios/utilities/phone-drive
Again this wouldn't need iTunes, which has to be a good thing.
Comments
Possibly An Easier Way
dropbox
Phone Drive