Good defrag program

I've heard windows defrag is crap fairly frequently over the past week and I was wondering what else I could use to compare? Free isn't a necessity, I just want something that works better especially for my work's "server" computer (it has many gigs of Autocad drawings on it and the thing is in desperate need of a good defrag).

 

I use Diskeeper, but if you search on majorgeeks.com theres several freeware ones.

 

o&o defrag is great. I would recommend it any day.

 

Any of these should work just fine: http://www.majorgeeks.com/page.php?id=20#defraghd

Personally, I'll second disk keeper, works great for me!