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Hello, Ben!
What should I say: I think you should rework it. Here are my comments and suggestions:
What is not ok?
You have simple but unclean design now. Grunge menu, cracked separator between Events and Featured Organizer and signup underline. Grayish gradient is dirty as for me.
Your grid is not ok. Blocks look distorted. Your start message is center-aligned, other blocks are not.
menu is separated with slashes – it looks like breadcrumbs, not menu itself.
Shadows are not ok. They just don't look right.
My suggestions:
Make light-light-grayish gradient, straight and glossy separators & menu.
Put your concept to grid (you can take sample at http://960.gs/)
Put a button to signup form.
make navigation larger in upcoming events. They will be the main clickable objects as I think.
make separators in menu vertical.
So, you have much to do :) Don't be offended, please, just trying to help.

No offense taken Alec! I am always open to constructive feed back.