NetLimiter 2 is a good program for monitoring bandwidth - it breaks down the usage with all kinds of charts, etc., so at a glance I can see how much bandwidth I've used over the past year/any given month/any day/down to any hour. For a techie, I think my usage is decidedly average. I get pretty much all of my TV shows over the net, d/l a few podcasts each day, and do a bit of torrenting (not much, maybe 4 GB per month). Over the past year and a half, my monthly average is 37 GB. This doesn't include my wife's laptop, which I'm sure doesn't amount to much, or the Xbox. Factoring those both in, I'd guess I'm right at the 40GB level. I'm a TW RR customer, and I would definitely switch service if they implemented a 40GB cap in my area. There are plenty of months where I'm around 32GB, but there are also occasional months where I hit 41 or 42GB. I'd support a bandwidth cap in the 100-200GB range which would only affect the most serious downloaders, but from my perspective 40GB is still in the "reasonable" range.