Droplet troubles

[btyo462]

Hi all. I'll start by saying that I have made dozens of droplets and batches in the past, and have never run into hair-pulling like this before. I have a folder with about 40 images in it. I'd like to create a droplet that does these two simple things:

1.) resizes them to 550 px wide
2.) Saves for Web with a medium image quality

That's all. I don't care what they get renamed as or even if they are simply overwritten with the same names. I have tinkered with each setting in the Create Droplet dialog and also tried countless combinations in the Actions menu to get this thing to work correctly. For some reason, no matter what I try, it always stops at each image and tells me that one with that name already exists (even when I am renaming them w/ serial #'s). Also, if I hit replace and continue the action, the usual JPEG image quality selector dialog pops up.

Needless to say it's ticking me off because normally I'd have this thing created in a couple minutes. Could anyone give me some tips on what I'm doing wrong or maybe even give me a brief run-thru on what actions and droplet options I need to have selected. Thanks in advance.