Very much only for web browsing and for connecting to work. I need to read documents for work but would probably switch back to the main PC with big screen to do that and at the moment I only work from home occasionally.
Linux copes fine with Microsoft Word, Excel & Powerpoint stuff as long as there are no fancy macros, also Acrobat docs etc.
What about this......http://www.laptopsdirect.co.uk/Lenovo_3000_N200_0769_TY2BMUK/version.asp
From Googling Lenovo seem to get good rep AND it's XP?
Looks like a damn fine baseline to try and beat. I like the 1Gb RAM and XP as well as card reader. The camera and fingerprint reader are candy. 2.7Kg seems to be the ballpark as well. Similar but slightly different is
Novatech - you get 2Gb but no OS. Actually I figure 512Mb RAM is fine for basic XP stuff (or Linux), 1Gb is tons and 2Gb is candy.
IIRC Lenovo started as a joint venture IBM and/or Toshiba to create a 'value' line without trashing their main product, so yes, is arguably better than some weird brand. But then again there are actually very few laptop motherboard & case manufacturers and even Dell, HP et al are sourcing from these few.
Lorry - paying Dell extra to provide XP instead of Vista is something that I figure should actually be classed as extortion - it is patently sponsored by Microsoft for their corporate reasons rather than user benefit. However Dell do have a bit of upside that they will ship with Ubuntu (often quite hard to find as they try not to anger Micro$oft) and also usually have vouchers or specials that keep them very competitive.
ps - was just browsing Dell and a few others to see if I could find a 'must buy'. Didn't find a killer - did see that lenovo is £420 at Dabs. As an AMD fanboy may be tempted by this
HP at Dabs but would immediately format the disk to purge Vista and load SuSE Linux

(did you guess I am a Linux fanboy yet!)
pps - based on my prejudice that I hate Microsoft more than Intel, if I had to buy today I may well go for something like
this Toshiba (only 512Mb RAM, 80Gb HDD but £330 and Core duo) and put Linux on it.