Savysearch,
I'm kind of glad I stumbled on SDN after my interviews. If I was an SDNer before my interviews last year, I'm pretty sure I would have had a nervous breakdown. But instead, my waiting experience was not that bad. Maybe the best thing to do is lay off SDN until you get that first interview invitation, and then come back and get some interview advice. It worked for me, with very little stress.
Good Luck