Lots of good advice below, but POD's experience of 12 months ago is a bit different now. Yes I agree, that it is unlikely that P2P during peak time will run flat out, but off peak it will. I was on an older package and even during peak time on P2Ps I was get between 1/3 and 2/3 of my line speed (1.5meg). Recently switched to the Pro package and I get full speed when I what with a 10gig peak limit.
We schedule all our downloads off peak, that fits to what we want but it might not fit everyones useage. You can make P2P work with PN, we can comfortably download 50-100 gig in total a month with 90% of that off peak.
I take it you parents can't get Be*?
Paul
Plus Net - maxDSL - BYW Pro package
Draytek Vigor 280VG running 2.7_E38 firmware