Are wireless keyboard and mice combinations any good? I was looking at a simple MS set at a local store today (not the crazy curvy kind). Have you any experience with them? I'm a bit concerned about the security. Do people remotely hack the wireless keyboards? Battery life is listed as 6 months. Is that realistic? Are there any delays due to the wireless system? Presumably drivers are needed in Windows (OS compatibility is listed on the box), but what happens with bootable utilities like Acronis, etc.? Thanks.