If it's for uni, don't get a gaming laptop. Get one of the new ultrabook range that are the windows equivalent of a macbook air (or get an MBA if you like apple). I use the Asus one and it's brilliant. The HP one also looks decent.
A laptop for uni requires two things; long battery life and light weight, which is basically the polar opposite of something with a powerful CPU/GPU
(that laptop above is 4.3kg, mine is 1.3)
Yeah I agree with you there, however i need a laptop with a decent GPU and CPU to run programs like Photoshop, Illustrator, Bridge and perhaps 3DS MAX simultaneously. If I could find a lightweight laptop that could handle these programs that'd be awesome. However I could leave my memory and graphically intensive programs for when i'm not at uni, but I live in rural Melbourne so i'd spend a lot of my time in town.
I advise not getting a alienware or clevo etc if you intend to carry them around to and from uni.
They are the heaviest s.o.bs ever and you will get a broken shoulder.
I recommend ultrabooks which are both light and look nice plus they aren't the best for gaming so you don't get tempted to play a game of starcraft 2 while you are studying.
If you just want one for casual purposes or for gaming I don't see why you cant just get a desktop computer.
I have a very decent desktop which I have been using for all gaming, programming, graphical and film purposes. I need something that could semi-replicate the capabilities of my PC. But, like you said, it would be a bitch to carry around.