Well, as long as you get your computer cleaned up, you should be fine while playing Runescape. If you want to play games with halfway decent graphics, I'd recommend you get a desktop. Laptops aren't really made for gaming, and, as other people have mentioned, they are a pain in the rear to upgrade..
Well, as long as whips are still vaulable, rares will continue to rise. And rise. And rise. But if Jagex made a rares shop, I would be very, very angry. I have 250m in rares, and I would go bankrupt overnight..