What should I do next?

I passed my A+ a couple months ago and my Network+ today and was just curious what I should go for next. I've heard the Security+ exam is pretty difficuly and I don't want to waste the time and money if I won't be able to pass it, but it's a cert that I really want. My question is, should I go for another cert before attempting Security+? My other interests at this moment are either CCNA or Server+. Any suggestions would be appreciated. Thanks in advance.
Comments
If I were you I'd go for the Security+ Cert. no matter how hard it might be, just study hard for it and you'll be fine. After the Security+ Cert. then go for the CCNA. I'm going for my CCNA now...that will be my next Cert. to have.
BTW...
Congratz on your Net+ Certy.
CCNP R&S - In Progress...
CCIE Security - Future...