Anyone know a good animation program for sprites?

I'm currently using Pencil, which makes some things easier to do compared to MS Paint, but motion tweening and related techniques are still painfully done frame by frame in my work. I'd buy Flash if I had the currency on hand, sadly I do not possess such good fortune. 8'<

Any ideas would be much appreciated. ^^~

Paying it is an option.
I think there are other options too.
Right now I can't think of any.
Any free programs anyone knows of?
There is one i am sure.
I am bored talking like this.
Nothing relieves boredom.
Go go

There is no shame,
in speaking oddly,
even though the syntax,
may disturb some people.

I'd rather not pay,
but if it's to finish my dreams,
I'll willingly cash in my savings.
...
But I only have $100. :<

There is a way as long as you are willing to search

you may render too by using photoshop, only if you just can XD

You could always look for torrents with a specific program and a crack.
But that would be wrong~

-goes back to watching all my torrented anime-