The tank BigIan and Miss Wiggle are looking at is the Aquiance 2050 (or 2055?) supplied with a CF1200 filter, so that answeres two of your questions IanH, just leaving the luminare.
The cabinet has a good finish, but it's thin MDF with that shrink-wrap finish put over it to water-proof it. IME the slightest bit of water in the wrong place can start the stand's finish to peel away, leaving the MDF exposed to the water also....

Feel like building your own Ian? cause thats what I'd do

Alternatively, get a load of 4X2 under it to hold the whole weight and place clear tape over all the edges to stop the water finding any "wrong places"

Would have told you that on Saturday, but I wasn't feeling lucky and with both bosses on the prowl.....

If you want honset opinions the whole time while I'm at work next time, speak to me in the fish room, away from the Senior staff
The tank is a new one in their range, a 2ft cube built from 12mm glass, where 8mm would suffice, so better glueing area and theoretically better seam-life due to reduced stress on the seams. Should be more "knock" resistant too. The tank bit is excellent quality.
I haven't owned an Aquaone exturnal so can't realy coment there.
The tank should be A1, but the cabinet could be better (like most)
HTH
Rabbut