I would not recommend encoding 24p content to 59.94 fps. This would be “hard telecine” and is rarely a good idea. Any device today is generally more than capable of handling the telecine requirement on demand. By this, I mean that your HTPC (or other decoding device) will decode the 24p file and then perform the telecine (2:3 pulldown) on the fly.
Telecine (or pulldown) judder is definitely noticeable for those that see it. Many viewers that have watched telecined TV and movies their entire lives may have become accustomed to the judder and so it just seems “normal.”