I don't mean to discourage anyone here, but I'll just post my experience so you guys know different views of the "so called" process (I sometimes call lottery instead)
I had my 1st FP done 09/2003 and got 10 days later case status changed to processing resumed. For your information the word resumed can also mean that the process will begin from then on, not that it's about to end. My husband on the other hand, never got FP notification until 2005.
Since 10/08/03 I did not receive any news or LUDs or message changes until 02/2005in which me and my husband got FP notice. (for me 2fps since first expired and process still pending) I never got FP received, process resumed this time. No news until 04/07/05 LUD and then following that 2 RFEs (request for further evidence)
We responded as soon as we could and now our status says that USCIS aknowledge our response on 05/02/05, nothing more. We are in June/05 now and nothing... so I just want to tell you all, that sometimes is better not expect too much, too soon... because I've been in an emotional rollercoaster here and It is just not worth it.
Good luck to all!