I opted for the free delivery as it wasn't urgent, but the Kindle arrived in the post this morning.
If you're after a Kindle I recommend you look at the link in Bingalau's thread, because my refurbished Kindle is immaculate, it doesn't look like it's ever been used, and is still covered by Amazon's bullet proof 1-year warranty.
The only thing missing from the new version that's £36 extra is the main's charger, you only get a USB lead with this one, but it uses the standard micro-usb lead, so I'm just using my mobile charger at the moment...
The refurbed 3G Kindle cost £115.99, brand new ones are £152.
You can buy the WiFi only models for £111 new or £79.99 refurbed.
When you set the Kindle up you tie it to your Amazon account, then turn on the 1-click purchase system within your Amazon account. Once you purchase an E-Book it is sent to your Kindle automatically so that the next time you turn on the 3G version or activate the WiFi on a standard version, the book is downloaded onto the device.
I just did a test purchase of a short story and it was on the device within 60 seconds.