Group commissions where all team members share in a commission on sales made

My company is considering instituting a plan where all team members would share in a commission on sales made. I'm looking for ideas - how is it structured, are all sales included in the group commission, etc.

++++++++++++++

The key principle that comes to mind here has to do with how the sales are made. Do the team members depend on each other to be successful? If they do, for each sale, then a team incentive where they have a single team target and a single team actual result, all receiving the same payout, makes great sense. If each team member has his or her "own" sales, and also supports the effort of the team, then an individual sales goal and a team goal may both be indicated (usually with a higher weight on the individual goal).