In my humble opinion there is no choice for a laptop PC.
1. Thinkpad T60 with 1400x1050 screen.
2. Thinkpad X60 if you need it light.
They have 3 year international warranty - the local fix it shop is in Quarry Bay with typical 2 hour turn-around time.
Macs can take several days to get fixed and/or new parts shipped in...
Sony's are too proprietary and thus price gouge on peripherals they make (brand) - I swore to myself I'll never buy Sony again for that reason - just look at the relative prices of Sony Memory Sticks vs similar sized memory from anyone else.