Advice needed on new laptop

[kilo]

Hey guys i am interested in selling my dads computer and old laptop and was wondering what i can ask for each.

PC:
Gigabyte G31M-S2C motherboard
Intel core 2 quad Q9550 cpu
4096mb ddr2
Geforce GTS 450
500GB hdd

Laptop:
Dell Vostro A860
1.86 cpu
160gb hdd
2gb ram

I am looking to buy a laptop between R6000 - R8000, any suggestions?
I know my dad is a fan of Dell and HP but i dont know good laptop brands so dont know where to start looking.

 

[ponder]

Avoid HP like the plaque or any other company that uses let me repair as their service agents.

 

[HeftyCrab]

Have heard from various sorces that dells support is top notch. Asus aswell.

 

[betty85]

Dell vostros are a nice affordable range, NBD warranty is excellent - definitely stay the heck away from HP

 

[kilo]

Thanks for the advice