Sorry.. He said buying an xbox.. not the game.
BUT it seems i was wrong any way there are diferences..
(I used wikipidia)
QUOTE
Halo Special Edition
Units Available: 200,000[2]
Retail Price: $169 USD
On March 14, 2004, Microsoft released a special version of the Xbox in the United States, Australia and New Zealand. This version was translucent green and came with a copy of Halo: Combat Evolved and a matching translucent green Controller S. The console case featured the Halo logo and the words "Special Edition"; the controller had a jewel that had the Halo logo in place of the normal Xbox logo. The version of Halo that came with this bundle was identical to other versions of Halo, with the exception of a "NOT FOR RESALE" notice placed on the front of the game case.
[edit] Halo 2
Units Available: Unknown
Retail Price: $249?
On March 18, 2005, an Ice Blue Halo 2 Limited Edition Xbox was released in Canada and Asia. The console was translucent blue and retailed for approximately $249. Included with the Ice Blue console was a matching Controller S, a special Halo green headset and a copy of Halo 2. The difference between the Asian and Canadian Halo 2 versions can be seen in the Xbox's jewel. The Asian version has a black jewel, while the Canadian version has a silver jewel. They were version 1.1 or 1.0
i guess i should have checked my facts instead of assuming i knew the answer . Having said that i did say dont quote me lol.