I'm thinking of reviewing the Dell Zino HD I received last week for being a good boy (sending about £30k's worth of business Dell's way

) for
the site, but I'm wondering what sort of things to cover.
I can review it as a PC no problem, especially performance related to development/"productivity"/office based apps, but this thing's supposed to be a home media type device, and on that front I'm pretty clueless.
What sort of things should I be looking at/for media wise? This one (it's the top spec. version at time of writing) has a blu-ray drive and an HDMI port - and that's about as clued up as I get on that front. What should I be checking for?
What about gaming and so on? I don't play many games on the PC any more as it's too expensive and the 360 (+ all my other consoles) are perfectly good enough for that and I don't fancy buying any games just to test this thing out. Are folks more interested in emulation on a device like this?
Finally, I didn't actually pay for this thing - and given the price (~£600 if I got Dell's configurator right on the spec) I imagine better PC's are available and wouldn't have bought it myself. Are people, generally, more willing to pay a little extra for home media type PC's?