Does anybody know anything about buying laptops?

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I’m looking to buy a new laptop. I have a laptop, but it is old and used and does not run well.
I’m planning on using this laptop for school writing assignments and taking notes in class, so I will need one that has a long battery life as well as one that is relatively light and portable.
I will also be using it for recreational purposes, such as e-mail, IM, games, etc. so I would need it to be able to handle downloads, photos, CDs, DVDs, and itunes easily.
Unfortunately I am also on a budget so I’m looking for the best possible price. I know absolutely nothing about computers/laptops/operating systems and everything like that.
And if it’s possible I’d like suggestions that will help me decide how to set it up once I buy the laptop.
I’d also prefer to buy a newer laptop, but I will deal with whatever suggestions are given because I trust my knowledge of computers, well, not at all.
As per your requirnments, I understand Dell’s new inspiron series laptops are quite cheap and will do it for you. As far as battery is concern, if you will go for 9-cell battery, it will last for 5-6 hours and it will be good enough for you. You can go for 1 GB/512 MBs RAM as per your usage. I suggest you buy dell Inspiron-1420.
Are you in the UK? Woolworths is selling a budget notebook for £200, it’s pretty solid and will do everything you want except for games – unless they are simple/older games. It’s very basic, but it’s a brand new machine for just £200. I’d buy it.
I’d recommend an Apple MacBook or MacBook Pro. You can check them out at apple.com or find more affordable models at macmall.com.
get an apple. i kno they’re a lot of mula but for college students they’re having this thing where if u by an apple lap top u get a free iPod nano. i have one, my mom has one and then we also hav a family computer one that we just got.