SOFTWARE BY W3KM
If you are into VHF and above operation, you owe it to yourself to check out Dave's offerings. His VHF-Log software is one of the best I have seen. With Dave's many years of VHF/UHF/Microwave contesting, he knows what is needed to log a contest with appropriate information from contacts that can come in rapid succession. His Gen-Log software is also useful for a lot of HF contests but is not optimized solely for VHF and above contests. It is a great product though. Check out his other offerings as well.
VHF Log: The best for the ARRL VHF & UHF and similar contests.
GEN Log: Over 320 different HF and above contests are supported.
Rover Logging: If you operate as a rover you NEED this software. Even has GPS capability.
For some specific information on different pieces of his software check out these links before you download the software.