I have a SR 2.4 MacBook Pro (15.4) with 1GBx2 sticks. I am going to upgrade it with a 4GB kit of 2gbx2 sticks. Can I use the old 1GB sticks in my Intel C2D 2GHz iMac (Aluminum iMac)? They both look to be DDR2 PC2-5300 RAM with the same specs... they're both 200 pin, 667mhz, etc... aren't they? Just want to make sure before I order RAM. I'm only justifying this because I can upgrade my MBP and iMac at the same time by buying 1 kit of ram.