Thanks guys, looks like the Venue 11 Pro i3 is the pick of the bunch if you can find one. Great site for Dell refurbs btw! Do you know if the Atom version (Venue 11 Pro 5130) would cope?

Main: MS600, G61R, DSP3100Vx3, DSP33x2, SW1600, Samsung 65JS9500 TV, Sony X800, Wireworld Star*light video cabling, Isotek Vision, Isotek Elite/Prem mains cabling.
Office: Roon ROCK on NUC7i5, Allo USBridge + iFi PSU, Prime Amp/PSU, Fostex TH900.
On the Go: Surface Pro, Explorer2, Sennheiser Momentum M2
Smyth Realiser2 on pre-order :-)