My imac (2.93 i7 imac) runs sluggish when im running Final Cut and Photoshop at the time, the programs lock up or the spinning ball of death comes up.Im assuming the problem is my ram because when i check " memory usage" it says 3.79 gb used. So im assuming that the Imac shipped with 4gb of ram is actually 2 2gb stick right? So im kinda on a budget so cheaper the better. I was thinking on buying a just another samsung 2 2gb sticks (factory original it says on the site) from macsales.com for giving me a total 8 gb of ram $30-40. Should i save up and get 8 or 16 gbs owc ram or just go with my plan above? Im only editing basic footage nothing professional just a hobby i do. Would 8gb be sufficient enough for me? or do i have this all wrong and someone needs to school me on ram lol?