Hey all, No idea where to put this so it's going in the Lounge. I have a collection of images of varying sizes that I'd like to turn into one big sprite sheet. It's proving very tedious to align every image with the one before it inside software like Paint.NET and then spacing it out properly on a sheet and what not. Any ideas on software to assist in this process? I imagine I can whip something up pretty quickly in a C# app but if something already exists it'll save me the day or two. Thanks!

Nick Gravelyn of XNA fame has created a free utility that takes all images in a folder and neatly arranges them on a bitmap:
Sprite Sheet Packer.

The positions of the images are written to text file in a special format. It's written completely in C# and comes with source, so you should be able to modify it if you need to.

There's also GlueIt, which is free and pretty straightforward to use.