In the October 2003 copy of PC Advisor, a review of notebooks was done.
Based on this, I suggest you look at the Advent 7027. (This review is not yet on this site). Its price is quoted as £1300, including VAT.
Brief spec: 3.06Ghz pentium 4 40Gb Hard Disc 512 Mb Ram Screen: 15.1" Graphics: ATI Radion 9000 64Mb Battery type & life: Lithium Ion - 180mins DVD writer Software: Win-XP Home, MS Works Warranty: 1 year collect/return
Comment by the reviewer: Despite having a desktop processor, this model achieved an astounding 3 hours in the battery test. It will handle everything you throw at it with ease. "Recommended".
Advent notebooks are available from PC World.
I am afraid if you want MS Office, you will have to buy it separately. Few models, if any, come with Office.
I've just aquired a Rock Direct QuaddraXS. This may fit your needs. It has a SIS graphics chip, so 3D performance may not be as good as maybe its XT brother (with a ATI Chip). I have achieved 1.45 hours of battery life. My model has a 2.6GHz processor, which goes to 2.1GHz (running off battery).
It must win the award for the quietest P4 computer. The silence is only broken by the fan kicking in at times. You get Ability Office and Panda Antivirus, as well as WinDVD and Roxio CD/DirectCD