Excerpts from the Xbox Live Manual that Make Me Worry Slightly About What I'm Getting Into:

p. 9, "Top Tips for Getting the Name that You Want, and That You're Proud to Call Your Own":

3. Consider using numbers in your Gamertag (e.g. B1AD3, SH0KK3R).

p. 19, "Play Famous Fellow Gamers":

Past participants at the Game With Fame party include:

Hoobastank
New Found Glory
Korn

-- 3N0T0 R4GN4R