Dell vs. Sony Vaio

I really need some advice on purchasing a notebook. I actually made a dell purchase a week ago on a dell inspiron 9300. It hasn't arrived as yet, but I'm seriously considering cancelling it. What I really want is a sony vaio, but the graphics card is better on the dell, so that is what's keeping me from getting the Vaio. What I really want this notebook for is to play my Sims2 and both the expansion packs. I have the Sims2 installed on my desktop, but it runs slow and it takes forever to load, so the reason I'm getting a new computer is to see improvements in those areas when I play my sims game, but I don't want another desktop, that's why I'm getting a laptop. I'm going to post the specs for both computers below, please let me know which one you think is a better notebook overall and if you think I'll be able to run my Sims game faster and have it load faster. Thanks in advance, you're help with this will be greatly appreciated.

Dell 9300 specs:

Inspiron 9300Intel® Pentium® M Processor 750 (1.86 GHz/2MB Cache/533MHz FSB)

Operating System (Office software not included)Genuine Windows® XP Media Center Edition 2005

Display17 inch UltraSharp™ Wide Screen UXGA Display with TrueLife™

Memory1GB Dual Channel DDR2 SDRAM at 533MHz 2 Dimm

Video Card256MB NVIDA® GeForce™ Go 6800

Hard Drive60GB 7200rpm Hard Drive

Network CardIntegrated 10/100 Network Card and ModemAdobe SoftwareAdobe®

Acrobat® Reader 6.0

CD/DVD Drives8x CD/DVD burner (DVD+/-RW) with double-layer DVD+R write capability

Wireless Networking CardIntel® PRO/Wireless 2915 Internal Wireless (802.11 a/b/g, 54Mbps)

Office Software (not included in Windows XP)No productivity suite- Corel WordPerfect word processor only

Price + shipping 1666.00

Sony Vaio A600 specs:

17" WXGA+ TFT (1440 x 900)

Wireless LAN (802.11b\g)

Microsoft Windows XP Home Edition

1 GB DDR-SDRAM (DDR2-400, 512 MBx2)Free memory upgrade from 512MB

Graphics : ATI Mobility™ Radeon™ X600 128MB DDR SDRAM

Intel® Pentium® M Processor 760 (2.0GHz, 2MB L2 Cache, 533MHz FSB)

60 GB Hard Disk Drive (5400 rpm)

Photo Standard
DVD+-RW with Dual Layer Drive

Music Standard

Microsoft Works 8.0 with Office 2003 "Student Teacher" Trial Edition

Video Standard

price + shipping 1767.99