I have looked at apple for years but never owned, I am now looking to replace a 6 year old pc with Petium 4 2.6 CPU and 512mb ram running xp. I use the PC for photo editing/storing, excel/ word, internet, nothing fancy. I have a Toshiba laptop for portability but want a new PC for the family. looking at the basic 21.5 Imac, but have been told I should try and upgrade from C2D to I5 since I know I will be keeping a long time ... other then slow I do not have issues with my current system and assume the jump would be enough any thoughts?