Help!! I need a old(second hand) reliable notebook~

Hi,everyone:

sorry i can't type Chinese here, because my HP V3708tx was dead few days ago...
same problem as everyone who bought HP V3708tx...the Nvidia 8400gs...it's won't display anything even BIOS loading...

I am travel in New Zealand, i need another notebook to get online to contact with my family, now i am using a 10 years old's DELL notebook which is my flat owner using...

Could you help me to chose a old(second hand) but reliable notebook?

my budget around 10000NTD = 400NZD

i hope the notebook could be:

1. Reliable
2. 2 years old max
3. can install Win7 64 ultimate (i already have the install DVD), it's should be ok if need to rewrite BIOS...
4. Screen: 12"~14"
5. easy to change HD & ram (hope i still can use ram from V3708tx, DDR2 667 or 800 4GB)
6. CD/DVD RW (internal or external is fine)
7. Battery (Last 1-2 hrs)
8. won't over heat ~
9. Nvidia graphics card

now i'm looking about
LENOVO IBM Thinkpad x200 (come with a external CD/DVD RW) NZ trademe bid website
IBM T60 NZtrademe bid website
Lenovo F40A NZ trademe bid website

which one is better?
or other choice?

Please & thanks