Converting RGB to CMYK for free?

Hi all,

I was wondering if there's any software out there that will convert RGB to CMYK for free (or nearly free?)

I use Graphic converter (it came with my pbook). I have pages but i don't think it does the conversion?

Thanks

Try Gimp, I have never used it but people say it is almost just like PS. I am sure it has same save prefs if it is indeed true.

Photoshop all the way lol