I am considering upgrading the RAM (stock 1GB currently) on my computer (iMac 2.0 GHz Core 2 Duo) so advice on how much I might need would be greatly appreciated! I haven't had to yet, but probably will need to do some fairly extensive video editing and creation (using iMovie, nothing professional). I also am getting an SLR camera and will obviously be taking high res pics and might use Aperture, undecided at this point. Word processing, medium-size music library run fine. Also I know Apple says 512 MB for Leopard, but coming from Windows not too too long ago I remember buying software that just crashed when running it even above the recommended amount of RAM with all other specification met as well. Thanks in advance for any suggestions.