I didn't invent items but, uh, organized some gold* and bought everything I want to see again.
Here's the result of my first shopping tour (will be repeated, but not today) - the party consists of the twins (ranger+druid), Vaelis and Riley (all lvl 6). My selection was biased (my party is build around speed, not defence) and not universally valid (I looked specifically for upgrades my chars could use). Some of the items are most likely too powerful for fixed equipment (like the second shield or the shoulder plates).
Wizards:


http://datamining-fuer-anfaenger.de/foo/items/m_chest1.jpg" style="max-width:100%">
rather high defence for wizard wear, could be useful


http://datamining-fuer-anfaenger.de/foo/items/m_feet1.jpg" style="max-width:100%">
another high defence item


http://datamining-fuer-anfaenger.de/foo/items/m_shoulder1.jpg" style="max-width:100%">
one piece of equipment without disadvantages


http://datamining-fuer-anfaenger.de/foo/items/m_twohand1.jpg" style="max-width:100%">
rather high damage and magic, without significant downsides
Warriors:


http://datamining-fuer-anfaenger.de/foo/items/w_arm1.jpg" style="max-width:100%">
high defence for a fast bracer


http://datamining-fuer-anfaenger.de/foo/items/w_arm2.jpg" style="max-width:100%">
allrounder without downsides


http://datamining-fuer-anfaenger.de/foo/items/w_chest1.jpg" style="max-width:100%">
doesn't slow down with fair defence


http://datamining-fuer-anfaenger.de/foo/items/w_chest2.jpg" style="max-width:100%">
no downsides, for warriors not willing to live in a tin can


http://datamining-fuer-anfaenger.de/foo/items/w_feet1.jpg" style="max-width:100%">
fair attack and magic bonus


http://datamining-fuer-anfaenger.de/foo/items/w_head1.jpg" style="max-width:100%">
boring average, but often an upgrade after act 1


http://datamining-fuer-anfaenger.de/foo/items/w_head2.jpg" style="max-width:100%">
all important attributes are pushed (the price is a lie -> Zazir

)


http://datamining-fuer-anfaenger.de/foo/items/w_leg1.jpg" style="max-width:100%">
another very solid allrounder


http://datamining-fuer-anfaenger.de/foo/items/w_leg2.jpg" style="max-width:100%">
high defence, small speed penalty


http://datamining-fuer-anfaenger.de/foo/items/w_onehand1.jpg" style="max-width:100%">
fair damage, only bonuses


http://datamining-fuer-anfaenger.de/foo/items/w_onehand2.jpg" style="max-width:100%">
fair damage, no downsides


http://datamining-fuer-anfaenger.de/foo/items/w_ranged1.jpg" style="max-width:100%">
high damage for a small crossbow, great push for magic and defence


http://datamining-fuer-anfaenger.de/foo/items/w_shield1.jpg" style="max-width:100%">


http://datamining-fuer-anfaenger.de/foo/items/w_shield2.jpg" style="max-width:100%">
two shields without major problems


http://datamining-fuer-anfaenger.de/foo/items/w_shoulder1.jpg" style="max-width:100%">
gives defence without slowing down


http://datamining-fuer-anfaenger.de/foo/items/w_shoulder2.jpg" style="max-width:100%">
an example for a solid low-cost shoulder piece


http://datamining-fuer-anfaenger.de/foo/items/w_twohand1.jpg" style="max-width:100%">
damage with very fine bonuses


http://datamining-fuer-anfaenger.de/foo/items/w_twohand2.jpg" style="max-width:100%">
fast damage dealer
*) The layout is horrible unflexible, a mere
http://datamining-fuer-anfaenger.de/foo/items/broken_layout.jpg breaks everything
