This is their website:
http://www.pcnextday.co.uk/Mixed feelings about them really.
Bought two top end ish laptops from them for my lads two years ago, based on a rave review in one of the pc mags. One of them was repaired under warranty, transformer problem, they even did more that was required, giving the machine an overhaul while they were at it. Both dvd's are now playing up but that's not unusual for laptops IMO. Other than that they're still going strong, and they do get hammered.
Recommended them to a lady work colleague who bought two desktops, one of which wouldn't boot up. After a bit of prevarication, they took it back, repaired it, only for it to be exactly the same next time it was booted up.
I ended up speaking to them myself after they'd given her the runaround. they sent out a recovery disk (you don't get one normally). Reloaded the OS and all is well now.
Left me with a bitter taste in my mouth having recommended them.
So as I say mixed feelings. :-/
What I would say is that you do get a lot of bang for your buck

p.s. if you're looking for serious gaming you may have to go with better graphics than the 8400GS.