Actually, the newer laptops make it easier to remove the HDD, RAM, Optical Drive and Wireless cards. In some cases, you just need to remove one or two doors, unscrew 2-4 screws, and in some cases, disconnect something to gain access to another (Like mine, remove the HDD to gain access to the wireless/bluetooth combined module). In most cases, you'll need to replace the mainboard to upgrade the GPU. And my current and previous laptop, I can remove a door to gain access to the HDD and RAM (my previous laptop is from '05, current from '10). However, to replace or clean, either be prepared to remove a shitton of screws (10-26+) and have time on your hands, or hire someone to do that for you (and pay about $50).