I tried on a pair of the k-legs last week at Gecko here in Canberra, I think they were $220.
They are pretty thick - I thought if I got a pair I'd have to get new pants to go over the top of them as I'd need a size bigger (at least) to accommodate them. I reckon they'd be a bitch in summer.
They are also definitely made for boys... there was a fair bit of... well room in the front
Personally I wouldn't buy them.
I had a quick look at the Chinos and they look pretty good if you need something a little more "officey".
The Icon field armour looks the goods from looking at it on the net, but I've only seen the shorts version.