Linux in the Ham Shack

I found an excellent podcast focusing on using linux in support of amateur radio. The show is hosted by Richard, KB5JVB, and Russ, K5TUX. The first episode debuted in October 2008 and as of this month there are a total of 8 episodes with another episode due any day. Richard is a good ol’ boy from Dallas, TX and it is worth listening to the show just to hear his banter. Russ is the brains behind the operation. There is also a forum for discussion.
I am trying to find a good logging program that I can use. Under Windows I use Ham Radio Deluxe, which is hard to beat with all its features. Is there any piece of linux software that is a feature rich?
There is CQRLOG. This looks like a fairly new piece of software that is described as: an advanced ham radio logger based on Firebird database. Provides radio control based on hamlib libraries (currently support of 140+ radio types and models), DX cluster connection, QRZ callbook (web version), a grayliner, ON6DP QSL manager database support and a most accurate country resolution algorithm based on country tables developed by OK1RR. CQRLOG is intended for daily general logging of HF, CW & SSB contacts and strongly focused on easy operation and maintenance.