Cap is stupid, but unfortunately we should be expecting it - most ISPs around the world have caps, it's the best deterrent for piracy. I'm surprised Streamyx hasn't introduced it earlier. Though they should practice fair capping that other ISPs follow. I think the standard rate for HSBB in the US is about 250 GB a month in the US. TM should go for cap rates like that.

Does the TV channel watching eat into cap as well? It'll be hilarious if you leave the TV overnight on and it eats all your cap for the month