Go old school, edit with MS Paint.

Go to Image - Stretch/Skew and adjust the proportions. :)

or photoshop.... with image resize and save for web saved as an action it is a one key solution.....

i use what frozty told me, ive been using that forever .. frozty got here before me lol. it works great i can resize all 100 pics ath teh same time so its good.. really speeds up the uploading process too