This may seem VERY trivial, but WHAT method to use to create rounded corners, whether it be JS, PURE CSS, CSS with images, or what is something people talk about a lot. Cross browser compatibility and what not is always an issue to talk about. What's faster, easier, whatever. I'm doing some research. I haven't made my decision yet.

I want to be able to use a background gradient for a couple tables or divs(depending on what method i use)

I've seen Spiffy corners, but am not sure if you can use background gradient images with it and it seems very limited as far as the radius goes(unless I'm missing something. If someone could show me an example of using Spiffy corners for a rounded corner radius of 15px it'd be greatly appreciated)

I think if I was able to use spiffy and increase the radius by 15px rounded and use background gradients I'd be content.

There are many methods to get rounded corners, Spiffy is only one of them.

There's a whole list of them here: http://www.smileycat.com/miaow/archives/000044.php

Maybe I should rephrase what I said.
My point was to get OPINIONS on what you guys think is the best method.
I know there are many.

well In my opinion the css method of rounded corners is superior to actual graphics. This is because you save space and look cool all in one shot

I still use graphics. I cannot live without my images, so I didn't yet jump into the css bandwagon (at least not in this case)

I just use background images, it uses much less code and is generally easier. You can also apply more effects to it, and there's nothing wrong with it, so it's perfect in my opinion. JS and CSS methods add too much code which one small, properly optimized image could deal with.