[SDL] Widget set

[GyroTech]

Hello all,
  I've been using SDL with OpenGL for a while now, and using AntTweakBar 
if I ever needed a simple UI. Unfortunately, I have an app with greater 
requirements, a model viewer. This app needs a much more dynamic 
interface than I believe AntTweakBar is capable of, such as file 
browsing windows.
  My non-OGL apps often use wxWidgets but most of the forum postings 
I've read show a certain level of incompatibility between SDL and 
wxGLCanvas due to the way they handle inputs and so forth. Plus the 
little rendering engine I'm working on is using SDL rather heavily and 
would prefer not to have to detach all the GL code form that.
  So, can anyone suggest either a good SDL-compatible advanced GUI set 
or a way of getting SDL and wxWidgets to talk (maybe I could have a 
wxWidgets 'main app' that casts off a thread in which SDL creates & runs 
a window) or something else entirely.

Thanks for any ideas,

Gyro Tech