S,
You do realise there are a lot of progs that will automate the conversion process for you ie good ol' ModelConverterX (8 16 or 24 bit) does batch image conversion, and Imagetool.org does it online et al.
Huub, Hag these posts made me smile, both very true..ha ha!
For me when something you've been working on finally looks just right in the sims.
Cheers
Shessi