If you wanna buy some, only few advices:
Don't buy the ones with 1024*768 resolution, Adobe Photoshop dialogs will be too big, and you may not use it! Buy 13xx x xxx resolution (text will be smaller, but Adobe Photoshop dialogs will thank you...).
Buy standard 2GB RAM, don't the 1 GB.
Buy one with BIG keys, look to LEFT and RIGHT free space near the keyboard. I don't know, why some designers putting free space near keyboard and using small keys, but i wanna kill for it

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Almost all small notebooks have same weight 1,2-1,5 kg, so no big deal here. 1,2 is for small battery, 1,5 kg for big 6 cells battery, all notebooks are same in this. So buy bigger battery and focus on good brand, so keypad will be useful (cheaper brands keypad are almost for nothing).
BTW aluminium or some hard case rock, the plastic is ugly and weak, with aluminium you may impress all chicks

if you will put the aluminium "fancy" superb "toy" to the restaurant table...

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