Ok then have a look at wikipedia about what adsl is: http://en.wikipedia.org/wiki/ADSL
So what you want if you want host from your own server at home is a real dsl line. And these are hard to find even in the netherlands. So you have to settle with slower speeds.

Those 48kb are per second. So try calculation the bandwidth per month from that.

PS: Try to visit http://thuis.vanderhoning.net it is on my home adsl connection.