EoIP alternative

Hi Folks
Have a site with 8 locations surrounding a ISP AP high site. We thus have 8 PPPOE accounts on radios with a RB750 behind them and wish to have a common lan for the 8 locations. All offices for the same company. Star topology. I have 7 EoIP tunnels bridged on one router to facilitate this.
We are sending a lot of Video across the network and it can’t be a very efficient solution with most traffic having to traverse the radio link 4 times when twice would suffice.
Any suggestions ?
Puffer

http://wiki.mikrotik.com/wiki/Manual:MPLSVPLS

Alternately, (depending on your relationship with the customer) if each office is connected to the same POP, you could set up dedicated AP(s) at that POP for the customer, and set up their “WAN” router at your POP.

So the topology would become something like:

POP router <--> customer Internet router <--> customer AP(s) <--> office 1
                                                             <--> office 2
                                                             <--> etc.

With this topology, you could even give the offices separate subnets, and then use static routes or a dynamic routing protocol to ensure connectivity between the offices.

The advantage (and disadvantage) to separating the subnets would be preventing broadcast traffic from having to repeat between all offices. If the broadcast traffic were necessary, you could bridge the links and the customer APs so that it was all one flat network – at the performance cost of having to repeat the broadcast traffic to all 8 offices.