Can't help much with a new XBOX, controller, mic, or copy of Halo 4, but this thread definitely made me laugh...it's also become rather de-railed, but it made me laugh
You are probably going to have to bite the bullet on Halo 4 and pay something close to full price if you want it any time soon. Even a used copy will probably run you at least $50 but I did see something on eCrater.com for $40 but I've never heard of them before so don't know how reliable they are. Some of us have got to have a basic mic that we've never used (I think I got rid of mine when I moved, but I'll double check this weekend). If I find an old one I can ship it to you, and I'm sure I'm not the only one who might have a spare mic laying around that came with the 360 and was never used. Dom probably has 4 or 5 laying around from all the 360's he's bought