Beware using it as a DVR
For the third generation now, the clock still loses minutes every day. Not good when you have scheduled it to record your favourite program!
Also, still after three generations, you still cannot record back to back programs. You get awful video/audio sync problems when you try to do it.
As the DVR station is an extra £80 on top of the already expensive device, these issues really are taking the mickey and Archos seem unable to fix them (The 5 suffers from the same problems as well see www.unofgadgets.com for discussions about this)
One final thing. Archos have been promising the HiDef plug-in for a very long time now and there's still no sign of it.