After looking around on the forums, I realized that editing the GUI of KotOR (and possibly TSL) is quite painful and most people use K-GFF (very great tool, but not visual). I then found xoreos-tools (part of xoreos - a very cool open source project).
So this weekend, I started up making my own version of a tool which should help a lot with the process of laying out things nicely. The project is not fully complete, but it is ready for some beta testing!
A few features so far