Be sure to include and the buy-in in the leader-board formula. E.g. the freeroll should bring a lot less point to it.
The idea is to have more buy in tournaments than freerolls, so for that reason alone people playing in the buy in tournaments will have a chance to get more points. The buy in tournaments could award more points, but it should remain balanced. The main idea for the freeroll is to allow players to collect some coins there, and be also able to play in the other tournaments.
I would but only if I like the browser based Poker room and currently there aren't any. So unless you're thinking of making a new site, I'd pass. Also, all the people which seem to be excited are only because you said freeroll and you'll get a lot of them entering the freeroll but very few will actually play buy-in tournaments. This is the reason why a lot of good sites died.
Not going to create a new site. Will try to get a sponsor and if the site has web browser poker it can be played in a browser. I'm used to download poker software, I even prefer to do it even when the poker room has a browser client, because clients tend to lag less and normaly have more features that I like to use. It would be great to create something that everyone would like, but sometimes that is not possible.
As for the freerolls, like I explained before, a skilled players should be able to pass by the league with profit without having to risk much, or probably anything. The winnings from the freerolls should pay the buy ins for the other tournaments, and the winnings from the other tournaments should pay their own buy in and the buy in of the main event. We will not have just freerolls, that is not the idea.