Quote - I have over a thousand individual frames to assemble into an animation, but I'm having trouble finding any software that will do this. Any suggestions?

Try PD Pro Digital Painter, aka Project Dogaffle Professional.

http://www.thebest3d.com/dogwaffle/demozone

You can load AVI files or Image sequences (Targa, Tiff, Bmp, Jpg, Png...)

The fastest loader will be with the frames in Targa format, using the 'Default Targa' loader. Which is native to PD Pro. The other formats are converted with ImageMagick to a TempTga.tga Targa file and then loaded.

Anyway, PD Pro is much more than a painttoo. It also works on animations, and you can transfer your animation to a custom brush, to paint with that animation on another animation.

1000+ frames is possible, if you have enough memory. The latest build of an update patch was 4.0c last week, with hooks for better use of high address memory to support large images. SHould also improve support for many frames in animations.

What are the dimensions of your frames?

-Philip

PS: you can also assemble a bunch of images with Quicktime Pro, and save that to Quicktime, Avi and others.

And I'd also look at VirtualDub, and Wax (www.debugmode.com)