Spyder:

A+ wont help you a bit toward an infosec job - I'm a hiring manager and could care less about A+.....unless I'm hiring for tech support (helpdesk, desktop,etc).

Going from A+ to CISSP is like climbing the steps in a 2-story house to climbing a mountain...huge mountain. You'll have much studying to do between those two.

Like others have mentioned, CISSP is geared to sec managers. They have other certs that are more for the specialist/technical folk.

Keep in mind that ISC2 DOES audit CISSP professionals to ensure requirements are met.....better make sure your _ducks_ are in a row before even registering for the $500 test.

Good luck.....study your arse off for the CISSP!!!