Cafe.Racer:
I'm pondering my next gadget pickup/fiddle, and I'm thinking of getting a 2nd hand, 10" screen, tablet PC for use in our kitchen for MCE.
If you're going the 2nd hand route you might like to look at a Compaq TC1100 with the docking station. It's not a quick machine but should be up to playing SD quality video. The docking station however is quite flexible in how it holds the laptop and was one of the more innovate features of the tablet PCs that came out. (Don't be fooled into getting the older TC1000 as it has some awfully slow CPU)
Cafe.Racer:
I'd always read that it was not possible to use a PC as a true extender, but I wondered if anyone had cracked this yet?
Don't believe so. WebGuide is the closest there is, and IMHO, now that Microsoft owns WebGuide I don't see them ever releasing "SoftSled".
Cafe.Racer:
This would be on MCE2005 and on an XP Tablet.
Would it be possible to either put the MCE components onto a tablet PC, or install MCE on there and not "break" the touch screen functionality.
Media Center Edition and Tablet Edition are both different versions of XP, albeit both based off XP Pro. There is no official way of installing the components from one version onto the other. I've seen threads on TGB regarding hacking MCE onto W2K3 so you might be able to take the steps from there to force MCE onto Tablet Edition. But it would be a complete Frankenstein build of XP.
Of course Vista includes both Media Center and Tablet functionality out of the box, and I do think a touch screen interface would work very well for Media Center in the kitchen.
MCE2005 (Reluctantly decided not to upgrade to TV Pack - will see if 7MC fixes the issues) | AMD64X2 3600+ | 1Gb Ram | 3x500Gb SATA | Hauppauge PVR150 | nVidia 7300LE silent GPU | Pig ugly big black case | Virgin Media cable | Xbox 360 wired extender