While I don't go around buying tons of different theme packs for the 360, I have to say that I love, love, LOVE the original Penny Arcade 360 Theme and gamer pics. Now there's a new theme and 4 more picture packs! Get'em while they're hot!
http://www.penny-arcade.com/
(that link won't take you to the theme/gamerpic examples after the Monday news post, so you'll have to go through the archive after the 12th)
-t.
New Penny Arcade Themes
New Penny Arcade Themes
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Gaming News and Commentary for Real People
Gaming News and Commentary for Real People