90% of the NTSC/J games available here are in English! I know, coz I'm a XBoxer too! Do not modify your set if you intent to play online. But heard there's a mod chip which allows you to disable it before you go online.
Anyway, you can find out more about it at these local websites and at the same time meet fellow XBoxers,
http://www.bob.com.sg/forum/
http://forums.hardwarezone.com/forumdispla...p?s=&forumid=76
http://www.xbox.com/zh-SG/default.htm
Have fun!