I use mac... OS X Lion... and short of not being able to us UV Mapper, under Lion, I don't have too many issues, to be honest.

EDIT: I keep meaning to test that, UV Mapper, running under Wine Bottler...

I have somewhat simple tastes when it comes to utilities and scripts though... it has to be said... EZSkin2... Wardrobe Wizard... er, that's about it...

...I've tinkered a bit with matmatic... so far...

...and I guess if I really wanted something that was Windows only, and externally compiled (not just platform agnostic python) that'll be the time I fire up XCode and write my own equivalent