asterisk users - Feb 2005 - Is using Sipura 2100 as SOHO main router good solution?

Hi,
I got this device and it looks like I can get this to work as a router
connecting my local net to my DSL provider with QoS in place of my old
router.


I am thinking of using it as follows:
Dsl -> 2100 -> switch with * box and voip phones attached -> old router
->
other pcs


Does it sound like good plan? 
Thanks
robert