Help buying HP laptop

Hi all . I need a laptop, and I saw a few in the store. I saw these 4 diffrent laptops could you guys tell me if they are good and fast ones and which one should i consider for my needs?I need the laptop for college work, internet, listening to music, watching a dvd and occasionaly playing a game and editing video and burning dvd. I want to know if their processor are fast and powerfull or should i consider AMD processor.Furthermore, It would be helpful if you guys explain to me the diffrence between core 2 duo and dual core proessors and which one is faster.

I also can't find any reviews about some of them, could someone point me to a few ?


1)HP PAVILION DV9870 MTT (FE594EA#ABH)

Note: couldn't find any review!!

2)HP PAVILION DV9890 MT3 (FE596EA#ABH)

Intel Core 2 Duo Processor T9300<LI class=indentFeature>(2.5 GHz, 800 MHz, 6 MB)
Genuine Windows Vista (R) Home Premium
4GB Memory
500 GB Hard Drive
Blu Ray Combo Drive
17″ BrightView Widescreen Screen
NVIDIA GeForce 8600M GS Graphics
Wireless-enabled
3 USB 2.0 Ports
3)HP PAVILION DV5-1130 (intel pentium dual core)

4)HP PAVILION DV5-1050ED (Intel centrino 2)

I be happy if you guys review them for me and give me your feedbacks.Thanks