OK, since we always get people coming and asking for links of applications to start modeling or doing digital art, This sticky is going to be for any and all free or very low cost 3D and 2D applications you can think of or find.
<ul type="square"> [*]Wings3D
(this one isn't free, but very low cost)
(again, not free but low-cost)
<ul type="square"> [*]The Gimp
[*] Art Rage
This is all I have, if you have anything to add, please do but make sure to include a URL to the product and whether it is a 2D or 3D application. Enjoy!