We use Active Boot disc from NTFS (NTFS.com NTFS File System. Data Recovery Software.). simple, reliable, affordable - well pleased with it. (Not connected with company!).
We also use Vision6 (distrubuted by codework.com). The product works really well and the support is 1st class.
I believe a new version is about to be released - that's the summer hols spoken for then!
We also use this method, although we have also invested in a Bloxx appliance. You may like to check that the group is a security gropu not a distribution group. 8)
Vision6 is great. We use it here on both wired and wireless networks. The tech support is first class and the whole company from Geneva downwards has a refreshingly friendly feel.