I can't imagine the DivX video is a nice transfer over wireless. I'm guessing there will be stutters in the video for high bitrates - I sometimes get this on my system if I use the wireless rather than the wired connection from my workstation to my HTPC.
Also note that to get the wireless facility, you'll need the pinnacle proprietry wireless card. Pretty pants.
I'd say you're better off getting a decent MPEG4 player for the same price... just burn your divx movies to CDR.
As you can see, I'm not keen on em... maybe cos pcworld were pilling em high last time I was there. Look, I was just passing...