Weather Station Project #9 - Building a Weather and General Info Display

I thought  that I might take some time and figure out a weather display for my PWS.  I am intending on using another RPi, different from the one running the PWS to do the interface to an old monitor that I have lying around.  I intend on have some sort of touch pad and people sensor attached to the RPi and mounted on the top of the monitor; also holding the RPi on the back of the monitor.  The idea is to be able to change what is being displayed, or send it into a rotation mode, by tapping on the touch pads, and have an IR sensor determine when someone walks into the room.  So the requirements look like the following:

(1) Raspberry Pi displaying output from the PWS / Weather Underground / Google Calendar / NOAA radar map / ABC News feed / Fox News feed, etc.

(2) a touch pad connected to the Raspberry Pi which is able to sense a touch and cause the display to change to the desired feed, or conversely to change to an auto rotating display.  The touch pad should also be able to turn the display off (sleep mode).

(3) an IR sensor connected to the Raspberry Pi which will detect when someone enters the room and turn the display on (from sleep mode), it should be able to be set to go into sleep mode automatically after a certain amount of time in which there is no movement in the room.

(4) the Raspberry Pi should be able to be connected to the wi-fi system via a usb adapter and have only a power connection to get it running.

Update: this is a shot of a Raspberry Pi B+, in a case, attached to the back of a Acer touch screen monitor via a little lexan Vesa mount that I picked up at Micro Center for cheap.  I am in the process of setting it up to do the afore mentioned items.  I just picked up the Acer Touch Screen Monitor from Micro Center for about $250.  It's a 21.5 inch screen area with two HDMI ports.  It has it's issues, and no I haven't tried out the touch screen interface on the RPi yet, but seems to be near enough to what I want to use.  Also, it doubles as the display for my Mac Mini.  I got it for a potential portable Weather Display.  BTW, the long adapter is for a Logitech keyboard; small adapter plus an extension.