Thanks guys. This is a great forum and tons of info.
Here is my take on your questions...
asdqwe2k2 / hichinnari - We just received two welcome notices and nothing after that.
shyam327 - correct
chnaveen - India
santosh_bh - I believe NC clearance took more than 2 years.. During retrogression I was in touch with congressman regarding that and also sent mail to FL, AG etc.
Fingerprints were automatic. Last week, I took an infopass appointment. I was told that my security check was pending and the IO wasn't able to give me a timeframe on when my case would be adjudicated.