Which computer should I choose, 3 choices.

[Simpsonator]

I'm buying a new computer in the next few days. It will basically be used for just games. Which is the best choice. Prices are cnd.

Choice #1
AMD 2500+ Barton
Specifications:
· ASUS A7N8X-X AMD Motherboard
· 512MB DDR 400 Ram
· 120GB Hard Drive 7200RPM ATA133
· 1.44 Floppy Drive
· P4 Mid ATX Case w/Front USB
· GeForce 4 128mb MX-440 AGP Card W/TV Out
· 17" Samsung LCD
· Logitech Access Keyboard
· Logitech Optical Scroll Mouse
· DVD Writer +\-
· 6 Channel Sound
· Subwoofer Speaker Set
· 10/100 Network Card
· Norton Antivirus 2003
· MS Windows XP Home Edition CD & Manual
$1699.97

#2.
Asus P4P800 Motherboard
· 512 DDR 400 Ram (2x256)
· 120GB 7200RPM Hard Drive ATA133
· 1.44MB Floppy Drive Black
· Hawk ATX P4 Mid-Tower Black Case
· Asus V9520-TD 128MB GeForce FX AGP Video Card w/TV Out
· 19" Black CRT Monitor
· Logitech Elite Black Keyboard
· Logitech Optical Wheel Mouse Black
· 6 Channel Onboard Audio
· 16X Black DVD ROM
· 52x32x52 Lite On Black CDRW
· Logitech Z-340 Speaker System
· Onboard 10/100 Ethernet Port
· MS Windows XP Home Edition CD & Manual
Intel P4 3.0 800 $1789.97

#3.
Intel 865GBFL Motherboard
MICROSOFT® WINDOWS® XP HOME
Intel® Pentium® 4 Processor 3.0 GHz with HT Technology
512MB RAM MEMORY
SAMSUNG 160GB 7200 RPM HARD DRIVE OEM
EXTREME DEDICATED 8xAGP VIDEO
17" LCD MONITOR SAMSUNG
52X24X52 CDRW IDE INTERNAL
DVDROM 16X INT. IDE
SOUNDMAX 3D SOUND, SPX & MIC. PRE-AMPLIFIER
ALTEC SERIES 100 121 2.1 SPEAKERS BLACK
MICROSOFT INTERNET KEYBOARD
MICROSOFT OPTICAL MOUSE
$1746.00

From my very limited computer knowledge I'm thinking #2. What would you say?