I know I just looked into this the other day, but I know some of the Linux+ exams (which they had vouchers for at getcertify4less), just expired on the 31st of October.. I think they were replaced with the ones mentioned, need to look it up..
I'm not positive about just getting the Novell Certified Linux Administrator credential just by passing the CompTia ones, but if so, that's really cool!
I remember back in the day when I was getting some CompTia certs, I got my i-Net+ (irrelevant now..) and that automatically qualified me as a CIW Associate, so I got two certs, which I wonder if they still exist.. hmm.. lol
A+, Network+, Security+, CIW Associate, CCNA, C|EH