I'm thoroughly enjoying this thread.

I didn't know about a lot of the aforementioned artists, and Kramus has certainly encouraged me to do more research into Albrecht Durer. I adore Gustav Klimt as well, MM. There's something so decadent and luxurious about his paintings. I'm also glad that Salvador Dali is getting lots of recognition. It's incredible how many people I've met over the years who cite him as the reason they first became interested in art - modern or otherwise.
I had intended to post several images of artwork by the German expressionist painter, Ernst Ludwig Kirchner, but - sadly - I don't think there are enough of his pictures available online to give a fair representation of his varied output within that genre. However, I found one example,
Bathers on the Lawn, which illustrates his striking style of portraiture and bold use of colour:
His Wikipedia entry is worth a look, if anyone is curious to know more about him:
http://en.wikipedia.org/wiki/Ernst_Ludwig_Kirchner
The Belgian surrealist, Paul Delvaux, is also relatively unknown, but I've managed to conjure up one of his typical pieces:
For me, no one captures the essence of a dream quite like Delvaux. His figures often stand like mannequins in the moonlight, oblivious to the subtle iconography of erotica or death all around them, as if to make the point that as human beings we often 'sleepwalk' through our existence, unaware of our own sexual presence or mortality. His settings always imply a silence and stillness which I - personally - find mesmeric.
Here is a link to Paul Delvaux's Wikipedia profile:
http://en.wikipedia.org/wiki/Paul_Delvaux