Yes I have, though only simple animations so far (two walk cycle variants and a cameo appearance or two in other clips). I am working on a 20 second sequence of one of the robots tap dancing to music. I should be done with it in a week or so. Meanwhile, here's my youtube page:

https://www.youtube.com/profile?user=LtJim

enjoy!

PS I hear you on texturing. I use Photoshop myself (most folks I know use Photoshop to at least some degree. Kurt here at SM, who does many of the tutorials, uses it almost exclusively). Haven't heard of Gimp but will check it out.

Keep up the good work!