I recently got (though i recon i payed about £50 too much thinking about it now)

Dell Vostro 200 (same case as inspiron but in sexy black)
Intel Conroe 2.33GHz (E6550)
2gig DDR2 RAM
2x 250gig, 7200rpm, Western Digital hard drives
x1300pro 256meg gfx card
7-1 card reader
dvdrw drive
Vista Business

All for £400 to my door, No monitor though. I've seen the same system go for £370 delivered since mind and where i got it from is a bit of a waiting game. Its genuine Dell though.

http://stores.ebay.co.uk/Dell-Outlet

You'll need to keep checking it each day to see what is available though.

I could have built the same system for about £300. but the way i did it was less hassle, i get a genuine version of a £180 OS, a 1 year warrenty and everything works nicely together since dell spend time matching hardware.

JAmes.

ps. It really is worth getting 2 gig of RAM and an idependent gfx card as mentioned above. Even the crappy one that I got with this machine that i'll be replacing can run HL2 perfectly, UT3 and COD4 - alright if you turn stuff down, and even that new need for speed which is total bollox runs well.