$48 A noticeable decrease from their usual prices.
http://www.thegnomonworkshop.com/store/product/1070/?mc_cid=a7343bf99a&mc_eid=b01c306570#.UzHQQdy5MYcThis lesson uses Maya and photoshop. But you don't have to paint your backgrounds... You have TG for that!!! However, you can learn (if you dont already know) how to paint *on* your TG renders. Making them even better, perhaps

I can personally recommend the gnomon training. Its good. Just be careful to only buy lessons that use software you already have. Or have comparable software that you are good enough to translate too.
I don't yet have anything from the teacher in this link. But Im going to buy this DVD on the strength of my previous experiences with the workshop.
Just thought some of you may be interested.
Cheers.