Denon DVD2910 or ARCAM DV78/79???

I'm in the market for a new DVD player for my system. I own an ARCAM CD93 cd player and found it to be amazing, so naturally, I decided to look at an ARCAM DVD players as well. Does anyone here have any experience with the ARCAM players? ARCAM has two currently DVD players, the DV78 and the much more expensive DV79 (with HDMI input, etc). Is the DV79 that good to justify the price difference between the two units? I've also been looking at the Denon DVD 2910, which seems to have all the features of the more expensive ARCAM unit and then some (and also costs considerably less than either of the two ARCAM units!). The UK audio magazines I've been reading rates all of these DVD players as being very good. My HD plasma tv can take the HDMI connection but I'm not sure if HDMI is really that much better. Any input you can provide to help me make my decision would be greatly appreciated! Should I be looking at any other brands?