I am a collector that has been around for several years on rubberslug with a gallery (Not entirely accurate at the moment) But it is being updated and rehauled. My Gallery on rubberslug is here -->
http://moonlightgallery.rubberslug.com/gallery/home.asp
And I have my on site /non-rubberslug gallery both for Collections as well as extra items for sale here -->
http://www.serendipity-collections.com/productionartmain.html
Series I collect are .....
Saiukkoku Monogatari
Vampire Knight
Loveless
Ashita no Nadja
Tokyo Mew Mew
Junni Kokki, Ayashi no Ceres
Fushigi Yuugi
Black Blood Brothers
Princess Tutu
Sailor Moon
Card Captor Sakura
Bleach
Da! Da! Da!
DN Angel
Fruits Basket (down at the moment, updating)
Kyou Kara Maou
InuYasha
Full Metal Panic
Kamikaze Kaitou Jeanne
Marmalade Boy
Peach girl
Weib Kruez
Ultra Maniac
Ai Yori Aoshi, and many more!