spoke to a senior programmer here. he’s worked on nearly all consoles since early ps1 days and he said theres no way you can get pc code working on xbox without having a xdk compiler. (possibly openXDK but doesnt that require a modded xbox or something?)
As for getting a 360 console, ms arent exactly throwing them around. You have to have a fairly solid design and ms approval before they’ll give ya one.. So i doubt ye’ll be able to swing one of those.