Organic Groups Limitations

Make up a demo page and the "play" around with CCK, OG, Views and Panels. So can you post more spesific questions around it. I'm not sure if you can have your own carusel for each user, but as you say, the other fields can be arranged via CCK.

The kicker here is just getting a user friendly admin site where the user will only see their page and be able to add what they want.

Here I'm litle bit unsure.

Panels seemed awesome, but it does not sound like it is well supported for Drupal 6. ...

Others I know will not use the Panels "yet. I hope Panels will be more ready soon. (But I'm using it for two site I'm building now)

It seems like you would have to have an individual view for every person.

Could you explained better what you want to create with Views? I have startet to build my site so I could try it out. It will take some litle time but at least we can try.
At last, to be sure that I'm understanding you, each user should have their own "page" without any contact with each other? Different themes (that's easy) and choises to different contents (easy to)?

the code is copy from og module, i just change some place.

then i have a context for every user, from this context, i can build a "user own web page " which like myspace. User can post blog, upload picture on his own page.

here is the code:

function zpuser_init(){
// Set group context and language if needed.
if ($zpuser = zpuser_determine_context()) {
zpuser_set_user_context($zpuser);
}
}

function zpuser_determine_context() {
$item = menu_get_item();
$object = menu_get_object('user');

// Use the menu system to get the path.
$path = $item['path'];

// Check if this is an existing node.
if (!empty($object->uid)) {
$zpuser = $object;
}
elseif ( strpos($path,'user') === 0 && is_numeric(arg(1))) {
$zpuser = user_load(arg(1));

}
elseif ( strpos($path,'relationships') === 0) {
global $user;
$zpuser = $user;
}
elseif ( $path == 'node/%') {

$node = menu_get_object();
if($node->type == 'blog'){
$zpuser = user_load(array('uid' => $node->uid));
}
}
elseif ( strpos($path, 'node/add') === 0 && arg(2) == 'blog') {
global $user;
$zpuser = $user;
}
elseif ( $path == 'blog/%') {
$zpuser = user_load(arg(1));

}
elseif ( $path == 'comment/reply/%') {
$node = menu_get_object('node', 2);
if($node->type == 'blog'){
$zpuser = user_load(array('uid' => $node->uid));
}
}

if (!empty($zpuser)) {
return $zpuser;
}
}

function zpuser_get_user_context(){
return zpuser_set_user_context();
}

function zpuser_set_user_context($user){
static $stored_zpuser;
if (!empty($user) && $user->uid > 0) {
$stored_zpuser = $user;
}
return !empty($stored_zpuser) ? $stored_zpuser : NULL;
}