Just noticed that Amazon is selling the Samsung GX20 with kit lens @ £566.99. PC World/Currys is selling the same kit for £799.99. Using the 110% price promise, the GX20 can be had for a very good price of £543.69 only!
The GX20 is the same as the Pentax K20D, with minor UI differences (some actually think the GX20 UI is better) and image processing algorithm.
If you are looking for a semi-pro, high resolution, weather sealed DSLR for portrait and landscape photography, look no further.
For a professional, in-depth review of the Pentax K20D, see the DPreview.com review @ http://www.dpreview.com/reviews/pentaxk20d/
Also note that, Samsung was doing a £100 cashback for the GX20 till September 30th. Perhaps its still worth a try, you'll have nothing to loose and plenty to gain ;-) See http://www.samsungcamera.co.uk/promotion/gx_cashback.html