looking for 2.0 hacks

I need hacks for the following:

1) an option for users to get either A) a digest of messages on a daily basis B) An email that contains the text of the post, not just a link - a link to do a reply though or c) as is, web only. I would like this

2) I want users to register with First Name and Last Name, not an arbitrary login name only.

3) Any ideas out there on CHAT integration? I have tried the webmaster.com chat and it seems ok, but unpredictable.

4) I want to use the login system for a system wide login and I want to limit and extend what is collected..i.e. nix Yahoo etc, add other fields.

Just checking if anyo0ne has done this stuff....or thinking on it.

i am working on A.

B custom fields

C search, there are about 20 threads on this

D custom fields.