I-485 FILED - how much time from now???

[like]

Hello.
I am one among the winners of DV-2008.
Yesterday I got mail from USCIS
(I-797C, Notice of Action)

It says:
Received date: October 19th, 2007
Notice Date : October 29th, 2007

I mailed my I-485 application to the Chicago center.

MY QUESTION IS:
Does anybody have any experience
(except 'Online Case Processing Time')
with this kind of stuff. I was wondering how much time does it usually take for them to schedule your Biometrics?

Any help appreciated.
Thank You!

[like]

Hello.
I am one among the winners of DV-2008.
Yesterday I got mail from USCIS
(I-797C, Notice of Action)

It says:
Received date: October 19th, 2007
Notice Date : October 29th, 2007

I mailed my I-485 application to the Chicago center.

MY QUESTION IS:
Does anybody have any experience
(except 'Online Case Processing Time')
with this kind of stuff. I was wondering how much time does it usually take for them to schedule your Biometrics?

Any help appreciated.
Thank You!