[TYPO3-ect] partner management extension

[Dr. Ronald P. Steiner]

Hi List,

I'm setting up a larger web project and am looking for an extension to 
fulfill this tasks:

1) Storing and checking information of people
- e-mail, address, name, photo, notes, attended workshop A / B / C / D / 
....

2) Sending personalized newsletters to people who:
- live in a certain country,
- attended workshop A and D but not E
- ...

3) Checking information:
- who attended Workshop A and C?
- what information is there for "name x"
- ...

What extensions could you recommend for this tasks?

#### tt_address #####
The "old" address database. The big advantage seams to me that there are 
a lot of extensions who base on it. So I could possibly realize a 
newsletter as required with direct_mail_subscription and direct_mail
In addition there are lots of interesting extensions which could come in 
handy later like: rggooglemap, addressgroups, ...

#### tx_party / wec_people / partner ####
I am still confused which of this extensions is the most current. David 
Brühlmeier seems to started with tx_party. Then the "web empowered 
chruch" carried the concept on in wec_people. partner is now is newly 
updated by David Brühlmeier again. In general the concept of this 
extensions looks brilliant. I'm just wondering is one of this extensions 
a good alternative to tt_address? Which one would you recommend? How is 
your experience with this extensions? Is there an extension for sending 
personalized newsletters with data from one of this extensions? Is there 
a way to use other tt_address extensions with this extensions? Is it 
worth trying the "new" concept, or is it just a lot of hassle? The data 
structure of tt_address might be a bit old fashioned, but there are a 
lot of extensions for tt_address, which might overcome this problem.

What do you think? What are your experiences?

greetings

Ron