FS: PENTAX DA 15MM F4 LIMITED

As the title says, I have Pentax DA 15mm Limited (black) for sale. It has been used once and the lens is as new, complete with packaging, pouch, covers, etc. Picked this up 2 weeks ago, but found out the DA 21mm (I already have) is wide enough for me.
Purchased in US (from authorized Pentax dealer), international warranty card requested and will forward once received.

Looking for GBP 420 (RMSD in UK included) or reasonable offer.

Payment by bank transfer, PayPal (buyer paying the fees), or in person (Southampton area; and I will take postage off the price).

Bump -> price drop to GBP 400. Also, I do have stamped International Warranty Card now - warranty until Feb 15, 2013.

Sold to whitesnake - fast payment, smooth transaction. Thanks.

Lens arrived quickly, well packaged, mint condition as advertised. Couldn't ask for more, many thanks!