Certification Question. Which is best?

I know, I know, you've probably answered this a million or two times, but I am quite new to the netsec game. I am looking to bolster my resume and salary negotiation power by getting a certification in this awesome field. Problem is, I don't know which is best to start with. My title right now is Information Security analyst if that helps.

My cursory search seems to indicate that Security+ is a classic and probably best but wanted some opinion on that particular cert vs ISO27001 ISMS, CEH, (ISC)^2 SSCP, or GIAC GSEC.

Any guidance would be wonderful. Let me know if I need to provide any other info.