Used Apple or New Notebook?

Hi Guys,

Please help me decide which one?

I am buying a used / new notebook as ive just started Uni this is to get me by until I can afford to buy a Gaming Desktop System early in the new year and then the notebook will still serve my needs as a portable option.

My dad is buying this as a gift so I only have the choice of these 2 below one is brand new never used the other has been used by my sister since new.

The system will be used for the below and nothing more:

Light Downloading Movies / Music
iTunes
Light Office Use (Excel Word)
Emails
Social Networking
Web Browsing – a lot
If I could play a couple of games on MINIMAL settings (WoW Cata & Dawn of War 2) would be a bonus but not “Needed”

Here are the two options

Samsung 300U – Brand New In Box with full warranty (12 months)

Specifications:

Product Description
Samsung Series 3 300U1A-A01 - P 957 1.2 GHz - 11.6" TFT
Dimensions (WxDxH)
27.8 cm x 19.6 cm x 2.8 cm
Weight
1.2 kg
System Type
Notebook
Built-in Devices
Stereo speakers, wireless LAN aerial, Bluetooth aerial
Processor
Intel Pentium 957 / 1.2 GHz ( Dual-Core )
Cache Memory
2 MB
RAM
4 GB DDR3 SDRAM ( 1 x 4 GB )
Card Reader
4 in 1
Hard Drive
320 GB - Serial ATA-300 - 5400 rpm
Display
11.6" LED backlight TFT 1366 x 768 ( WXGA )
Graphics Controller
Intel HD Graphics 3000 Dynamic Video Memory Technology
Audio Output
Sound card
Networking
Network adapter - Ethernet, Fast Ethernet, Gigabit Ethernet, IEEE 802.11b, IEEE 802.11g, IEEE 802.11n, Bluetooth 3.0
Notebook Camera
Integrated - 1.3 Megapixel
Input Device
Keyboard, touchpad
Battery
4-cell
Operating System
Microsoft Windows 7 Home Premium 64-bit Edition
Microsoft Office Preloaded
Includes a pre-loaded image of select Microsoft Office 2010 suites. Purchase an Office 2010 Product Key Card or disc to activate preloaded software on this PC.
Manufacturer Warranty
1 year warranty

Used MacBook Pro (used since new by my sister had a replacement battery in April from Apple store)

Specifications:

MacBook Pro 13inch Late 2009 model
Mac OS X Snow Leopard 10.6.8
2.26 GHz Intel Core 2 Duo
4 GB 1067MHz DDR3 RAM
120 GB Solid State Drive 'OWC Mercury Extreme SSD'
NVIDIA GeForce 94000M 256 MB
13inch Glossy Screen 1280 x 800

I would appreciate any advice and comments as to which would be best suited for my needs?