I am near the end of my Diskeeper Pro Trial period, and I really like the automatic defrag feature- its really convenient.
Initially I ran only a few manual defrags, but I have had it running on autodefrag for the last 2 weeks, and it really does a great job of keeping both C: and D: frag-free. Hehehe with my paranoia about running unwanted background services I was really uncomfortable with the thought of leaving autodefrag on all the time; I expected it to bog down other apps, but it has behaved very well, and I barely notice its presence except for the occasional HDD LED activity. Cool defragger (if a defragger can be 'cool' in any way

) and I am going to get the dept to get me a fulll blown license now