I fully agree that there needs to be a classic camera mod for GTA IV.
I'm no programmer either, so I can only wait until someone is generous enough to make one.
Does anyone know if the author of Camera Hack is intending on releasing a version for IV?
I haven't yet purchased the PC version, but on xbox I found that I was constantly correcting the camera with the stick, and that gets very annoying. I'd love to hear news that someone is working on a fix for this. I'm surprised it's not a bigger issue, really...