I've made available the first version of my SLF Editor. Right now, there is very limited functionality, limited to viewing STI/TGA files and playing WAV/MP3 files. You can also export any of the files within the SLF. However, if you always wondered what Kunar might have said to you if you didn't kill him, here's your chance to find out. 
There is a link available at:
http://www.accessv.com/~cpommer/
Please read the readme for more specific details. As usual, email sent to cpommer@accessv.com has a decent chance of being answered. 
Comments/suggestions posted here are equally welcome.
O.R.