Hard Disk Sentinel Standard is free on WindowsDeals for the next 4 days. http://www.windowsdeal.com/w/hard-disk-sentinel-standard-discount-coupon-code/
Yes,they require you to fill-in an e-mail address in order to get the giveaway details.. The e-mail does not have to be correct tho,you get to the downloads immediately. They had earlier the Pro version as a giveaway of Hard Disk Sentinel, so I am passing this one. Thanks, however.