I had some extra shrouds and made this for my vent mod in my 360, it's rough right now because i'm not sure if i wanna do it, plus its on an extra board rightnow that still has memory card ports (so it doesnt fit right), because I don't wanna open my Xbox back up until my Whisper legacy, led storm v2 and X-Drive comes. If I do do it, it'll have the foil mod over the top of the heatsinks. who likes the idea?

looks good to me mate as a starting point since you have made the vents might as well connect it up
a few hours work to neaten it up and

Cool cool, but you won't be able to see it when i'm done so it doesn't have to look perfect, i'm still 50/50 on it

I would recommend you do the fan shroud divider mod so the left fan is pulling air through the GPU only.

Like your idea with the front shroud but it should be done on an experimental basis, ie; temperature readings taken with and without to see what effect its having. I would do it myself but I haven't got the equipment to do temp readings yet.

I good idea!