I don't really see any problems. What I would suggest is simply listing more specific components because even though your picture is very nice, it doesn't really address how you plan on powering your laptop or getting audio to your speakers. If this is just because you haven't got there yet, that's perfectly fine, but we can help you more the more we know.
On what you did address: that gps receiver is said to be one of the best, the eyetoy camera is very flexible and powerful but you should specify what you want to do with it, that's a pretty slick bt dongle, your mic looks fine, we can offer suggestions for your OBDII if you would like such as OBDPros which work pretty well, the hd radio should be good with the cable you have mentioned.
About the screen it might be a PITA to get it to boot to the touchscreen properly but i'm sure it can be done.
Also you might need a usb hub depending how many usb ports you have on your laptop.
Hope this helps!