Klingspor's place used to offer 10% off coupons for everything in their store except for a few things. I don't think they have as many coupon offers as they used to, but they still come up occasionally.
Tormek doesn't tend to do sales, but they do special rebates and other offers.
I bought mine when Woodcraft was having one of their one day 15% off everything sales; it's not exempt, unlike Festool, etc. Tormek was also running a promo where you got the knife sharpening jigs for free as a rebate, so that worked out to be a pretty good combo deal for me on a new T7!
Keep you eyes looking at Hartville tool. They have Oneway stuff on sale from time to time and I was one of the lucky customers to stumble onto the sale they had on their Tormek sharpeners when the T-7 came out. I think that they had 3 of the older ones that they sold for half of what the new T-7 run now. The only difference in the T-7 version and mine is the water tray. Here is a link to their site.Turning Tools & Accessories I've bought most of my OneWay accessories from them over the last couple of years and have been very pleased with every purchase.
I purchased the Wolverine and a Oneway chuck from them using the 15% discount offered to users of the Woodnet forum. (If you are a member over there, just type Woodnet15 into the comments box at checkout. The only snag is that the item purchased must be at their regular price. Was still a good deal for me at the time.)