I know the Wusthof in-drawer block has been often used here. Sierra Trading Post has it today deeply discounted, see link and use code WZA2521H at check out for 40% off price shown. If you are unfamiliar with Sierra, they sell a of high end home goods, shoes and clothing but it goes fast. Last year I scored a $750 set of WMF casseroles for about $175, IIRC.

If that coupon code won't work, email me and I will forward my email for click-thru. I think anyone can get the discount.

Here is a link that might be useful: Sierra's kitchen stuff on sale thru the 18th