I own a 24" Intel Dual Core iMac and I love it. It came with 1 gig of ram, a single DDR2 chip in one of the two slots. Memory seems to drop in price every day so I'd love to take advantage of that by stopping at Best Buy and grabbing some, but I don't know how to open the beast and install it. Can I do that? How do I do that? Will Apple shoot my extended warranty through the heart if I do? I understand that taking it to the Apple store won't capture those low memory prices, or am I wrong?