Just grab yourself a router with a built in ADSL modem!
Make sure you get one with QOS though as this will allow you to set your voip priority over other web based traffic!
I would recommend the BT Voyager 240 Wired ADSL Router myself as it has everything you need and it comes with QOS. Everyone will have their own recomendations though!
I have one brand new in a box if your interested! I have cable broadband so never needed to open or use it!
Will be putting it on ebay!
