So... what is your StackOverflow score?
Shell script: 64 51 characters
curl -sL http://stackoverflow.com/users/`cat`|grep -oPm2 'n&quot;&gt;\K[0-9,]+|e&quot;&gt;\K[^&lt;]+'

Sample run:
bash-4.1$ curl -sL http://stackoverflow.com/users/`cat`|grep -oPm2 'n&quot;&gt;\K[0-9,]+|e&quot;&gt;\K[^&lt;]+'
662504
manatwork
834

bash-4.1$ curl -sL http://stackoverflow.com/users/`cat`|grep -oPm2 'n&quot;&gt;\K[0-9,]+|e&quot;&gt;\K[^&lt;]+'
764357
Lego Stormtroopr
3,087

(Note that you have to press ^D after typing in the input interactively. Or just pipe it to the command.)