CodeCanyon - anySize - Caching image resizer | 3,58 MB
anySize is a lightweight, drop-in, fully automated, caching, make-you-coffee-and-serve-it-in-bed script that lets you request and generate images (jpg, gif or png) of any size.
DEMO:
http://codecanyon.net/item/anysize-caching-image-resizer/53074?sso?WT.ac=search_item&WT.seg_1=search_item&WT.z_author=betaorbust