I do not know much about notebook
please, help me

budget : $950 - 1050
purpose : mostly internet, office, MATLAB, and some gaming
(some 3D games - but not like doom3/farcry/hl2)
looking for : btween 12-14inches, mobility, descent spec for my
price range
also : I'm AMD fan, but doesn't mind getting intel, but AMD seems
always cheaper!
so I researched and the following two interested me...
1. Fujitsu LifeBook S2110
$1050 after 150 rebate
Communication: Modem, LAN and WLAN
CPU Type: AMD Turion64 MT-30 (1.6GHz)
Graphics Card: ATI Xpress200M
Hard Disk: 40GB 4200rpm
Memory Size: 512MB DDR (2x256 I think)
Operating System: Windows XP Home
Optical Drive: DVD/CD-RW Combo
Part#: FPCM42158
Screen: 13.3''XGA TFT
2. AVERATEC AV4155-EH1
$950
Card slot: 1 Type II PC Card/CardBus slot
Communication: Modem, LAN and WLAN
CPU Type: Turion 64 MT-30(1.6GHz)
Dimensions: 12.5"W x 8.9"D x 1.4"H
Hard Disk: 80GB 4200 rpm
Memory Size: 512MB DDR
Operating System: Windows XP Home
Optical Drive: DVD¡¾R/RW Drive
Screen: 13.3" Wide XGA LCD
Weight: 4.2lbs
3. Compaq Presario v2000z
about $1000
Turion 64 ML-30
14" Widescreen XGA Display (1280x768)
128 MB Shared ATI RADEON XPRESS 200M
512 MB Shared RAM (1x512) (Later Upgraded To 1024 MB)
60 GB 4200 RPM Toshiba Hard Drive
DVD/CD-RW Combo Drive
Broadcom 54g 802.11 b/g WLAN w/ SpeedBooster
12-Cell Battery
Altec Lansing Speakers
Q1. which one of those three is thes best? (which one would you get?)
Q2. Is there a better notebook than those three at same price range?
Q3. did you hear anything about a company called TWINHEAD? (they are the only company with 14 inches barebone that I found)
Q4. do you konw if MSI MS-1013 Barebone Notebook is worth getting?
Q5. all those notebooks upthere has 4200 rpm... can you physically feel the difference between 4200 rpm and 7200 rpm?
long thread I know;;
thanx for reading and your help