Ash - I can second VladM's experience in terms of Lens/Misc stuff. I haven't personally gotten a body through them, but back when the 'bag out Aus retailers for "gouging" customers whingefest' was in full swing, a few peeps here on PF got K-5 bodies from them and I never saw any follow up complaints. I even recall someone had the old String-of-Pearls issue and had it sorted out... And I know a few others around the place that have taken the leap and gotten bodies from them, with the usual rate of pentax hit-n-miss on stuff (I recall at least one had a lens release button issue that they self-repaired anyway...).
I'm considering a K-5 IIs at the moment, and was looking at DWI myself.
But Digital Camera Warehouse are worth contacting - they are an actual Bricks & Mortar store and can often be persuaded to price match or at least expand the offering to near-price match.. throw in a Lowepro or a reasonable priced lens etc.. And if you contact CRK privately, and are reasonable in your negotations, they can often be persuaded to come damn close to the price as long as you aren't trying to break their arm using low-ball fly-by-nighters as a base of negotiations