Record Xbox 360!...?How?

Okay say I have this >
Pinnacle - PCTV HD Pro Stick USB 2.0 TV Tuner

and I want to record gameplay from xbox 360 and post on youtube.

how would I go about doing this?

and/or are their other ways of doing this?

maybe other devices?

The way i do it is a pain in the arse but i connect my Xbox 360 to my older standalone dvd recorder. Then i take the dvd and burn it to my pc...and convert it wmv or flv format. There has got to be an easier way so if you find out how please share..thanx. :D