I use a 3Gb account and that usually gets me by for a month, including typically 1Gb worth of downloads: Demos etc. But that's playing 3-4 hours a night, every night.
You cheeky so and so!!! Hehehehe... I got a 360 about a month and an half ago now.... I bought it at Rage, whenever that was....
I always knew that I would get a 360, from the very beginning, I was a Wii60 man, I knew I would have to be, some of them know yes.... but I am not advertising the fact. My brother, also a die hard Nintendo fanboy got his first... so that was kinda like permission to get one.