for corporate live systems, so far acronis seem to be making the best solutions. especially their exchange, sql etc offerings, and san compatability etc. in their price range there are no real competitors, and these do work great.
comparative 'fast and reliable' DR systems like evault; double take (remote location mirroring); etc. are way more expensive.
some less capable systems are:
http://drive-image-backup.com/image-for-windows.htm ($38.94). is quite inexpensive and works with all versions of windows. Create dr boot CD etc. This one has a version for Linux systems also. WIN. So we can consider using this for DR of any linux based production servers.
Active@ Disk Image 3.1. This is a good program with scheduling options and includes DR boot media package. http://www.disk-image.net/ .cost is $49.00 per license.
R-Drive Image 4.3. http://www.drive-image.com/ .has good options with dr cd etc. has a versions for Linux DR image creation also if we need to consider that. The cost is $45.95 per license.
and for non-corporate there is the free driveimageXML, which i use for my home PC.