I have an unlimited download with my current ISP. I am thinking of a change to one with a 20 Gig download a month limit. I use the internet for the usual browsing, occasional iTunes downloads etc - no films nor gaming. I do have a "Vonage" broadband phone for quite a lot of calls. I am trying to guess how much this phone uses; any views? Is there a suitable app to measure my current usage (W7 , 64 bit, ADSL2 )? One I tried did not work!