Practical? Probably not...Cool Mod addition? I think so...

[Outlaw]

7" LCD Touchscreen Radio with VGA Input (http://www.gnetcanada.com/lcd-7-in-dash-vga-touch-screen.asp). Sure it's $600 US dollars but how much time would it save you from maunually soldering and runing wires (if you are not that mechanically inclined). PLUS you can hook up an AM/FM radio and bump you PC (with shielded speakers of course). It is a little bit wider then your avg. CD-Rom slot but with some modding (I'm pretty sure you guys do that here :D) it would look sweet in a pc. They also have an 8" touchscreen only (http://www.gnetcanada.com/lcd-8-vga-touch-screen.asp) dislplay for $400 US dollars

Basic Specs on 7" Radio/Monitor:
Display: 1600x1200(MAX)
Brightness: 400 cd/m2
Contrast: 300:1
Inputs: 1-VGA, 2-RCA Composite PAL/NTSC Video Input,
Touch Screen Input: Integrated 4-wire resistive with USB interface
Dimensions: 7.12x2.0x6.4

Basic Specs on 8" Touch Screen Monitor only:
Display: 1024x768(MAX)
Brightness: 400 cd/m2
Contrast: 200:1
Inputs: 1-VGA, 1-RCA Composite PAL/NTSC Video Input, 1-S-Video PAL/NTSC Video Input
Touch Screen Input: Integrated 4-wire resistive with USB interface
Dimensions: 8.25x5.75x1.25

[Luke122]

Here's another, with DVD Player built in too! (http://www.mp3playerstore.com/stuff_you_need/dvd/DVD-720TS.htm)

-Built in Multiregion DVD/VCD Video and CD/MP3 Audio player
-DVD/DVD-R+/MPEG4/VCD/MP3/ WMA/MP4/CD-RW Compatible

*edit* Doesnt look like it has a usb interface, but I could be wrong..